monitoring requirements for catalytic incinerators as specified in
Sec.  63.988(c)(2) and the related recordkeeping requirements specified
in Sec.  63.998(a)(2)(ii)(B)(2) and (c)(2)(ii), you may elect to comply
with the requirements specified in paragraphs (k)(4)(i) through (iv) of
this section.
    (i) Monitor and record the inlet temperature as specified in
subpart SS of this part 63.
* * * * *
    (iv) Recording the downstream temperature and temperature
difference across the catalyst bed as specified in Sec.
63.998(a)(2)(ii)(B)(2) and (b)(2)(ii) is not required.
    (5) For absorbers that control organic compounds and use water as
the scrubbing fluid, you must conduct monitoring and recordkeeping as
specified in paragraphs (k)(5)(i) through (iii) of this section instead
of the monitoring and recordkeeping requirements specified in
Sec. Sec.  63.990(c)(1), 63.993(c)(1), and 63.998(a)(2)(ii)(C).
    (i) You must use a flow meter capable of providing a continuous
record of the absorber influent liquid flow.
    (ii) You must determine gas stream flow using one of the procedures
specified in Sec.  63.994(c)(1)(ii)(A) through (D).
    (iii) You must record the absorber liquid-to-gas ratio averaged
over the time period of any performance test.
    (6) For a control device with total inlet HAP emissions less than 1
tpy, you must establish an operating limit(s) for a parameter(s) that
you will measure and record at least once per averaging period (i.e.,
daily or block) to verify that the control device is operating
properly. You may elect to measure the same parameter(s) that is
required for control devices that control inlet HAP emissions equal to
or greater than 1 tpy. If the parameter will not be measured
continuously, you must request approval of your proposed procedure in
the precompliance report. You must identify the operating limit(s) and
the measurement frequency, and you must provide rationale to support
how these measurements demonstrate the control device is operating
properly.
* * * * *

0
5. Section 63.2460 is amended by:
0
a. Revising paragraph (b) introductory text and paragraphs (b)(1),
(b)(2), and (b)(3);
0
b. Redesignating paragraph (b)(4) as paragraph (b)(5) and revising
``paragraph (b)(4)(i), (ii), or (iii)'' to read ``paragraph (b)(5)(i),
(ii), or (iii)'' in redesignated paragraph (b)(5) introductory text;
0
c. Adding new paragraphs (b)(4), (b)(6), and (b)(7);
0
d. Revising paragraph (c) introductory text, paragraph (c)(1),
paragraph (c)(2)(iii), and the first sentence in paragraph (c)(2)(v);
0
e. Removing and reserving paragraph (c)(5), and
0
f. Adding new paragraphs (c)(8) and (c)(9) to read as follows:

Sec.  63.2460  What requirements must I meet for batch process vents?

* * * * *
    (b) Group status. If a process has batch process vents, as defined
in Sec.  63.2550, you must determine the group status of the batch
process vents by determining and summing the uncontrolled organic HAP
emissions from each of the batch process vents within the process using
the procedures specified in Sec.  63.1257(d)(2)(i) and (ii), except as
specified in paragraphs (b)(1) through (7) of this section.
    (1) To calculate emissions caused by the heating of a vessel
without a process condenser to a temperature lower than the boiling
point, you must use the procedures in Sec.  63.1257(d)(2)(i)(C)(3).
    (2) To calculate emissions from depressurization of a vessel
without a process condenser, you must use the procedures in Sec.
63.1257(d)(2)(i)(D)(10).
    (3) To calculate emissions from vacuum systems for the purposes of
this subpart, the receiving vessel is part of the vacuum system, and
terms used in Equation 33 to 40 CFR part 63, subpart GGG, are defined
as follows:

Psystem = absolute pressure of the receiving vessel;
Pi = partial pressure of the HAP determined at the exit
temperature and exit pressure conditions of the condenser or at the
conditions of the dedicated receiver;
Pj = partial pressure of condensables (including HAP)
determined at the exit temperature and exit pressure conditions of the
condenser or at the conditions of the dedicated receiver;
MWHAP = molecular weight of the HAP determined at the exit
temperature and exit pressure conditions of the condenser or at the
conditions of the dedicated receiver.

    (4) To calculate uncontrolled emissions when a vessel is equipped
with a process condenser, you must use the procedures in Sec.
63.1257(d)(3)(i)(B), except as specified in paragraphs (b)(4)(i)
through (vii) of this section.
    (i) You must determine the flowrate of gas (or volume of gas),
partial pressures of condensables, temperature (T), and HAP molecular
weight (MWHAP) at the exit temperature and exit pressure
conditions of the condenser or at the conditions of the dedicated
receiver.
    (ii) You must assume that all of the components contained in the
condenser exit vent stream are in equilibrium with the same components
in the exit condensate stream (except for noncondensables).
    (iii) You must perform a material balance for each component.
    (iv) For the emissions from gas evolution, the term for time, t,
must be used in Equation 12 to 40 CFR part 63, subpart GGG.
    (v) Emissions from empty vessel purging shall be calculated using
Equation 36 to 40 CFR part 63, subpart GGG and the exit temperature and
exit pressure conditions of the condenser or the conditions of the
dedicated receiver.
    (vi) You must conduct an engineering assessment as specified in
Sec.  63.1257(d)(2)(ii) for each emission episode that is not due to
vapor displacement, purging, heating, depressurization, vacuum
operations, gas evolution, air drying, or empty vessel purging. The
requirements of paragraphs (b)(3) through (4) of this section shall
apply.
    (vii) You may elect to conduct an engineering assessment if you can
demonstrate to the Administrator that the methods in Sec.
63.1257(d)(3)(i)(B) are not appropriate.
* * * * *
    (6) You may change from Group 2 to Group 1 in accordance with
either paragraph (b)(6)(i) or (ii) of this section. You must comply
with the requirements of this section and submit the test report in the
next Compliance report.
    (i) You may switch at any time after operating as Group 2 for at
least 1 year so that you can show compliance with the 10,000 pounds per
year (lb/yr) threshold for Group 2 batch process vents for at least 365
days before the switch. You may elect to start keeping records of
emissions from Group 2 batch process vents before the compliance date.
Report a switch based on this

provision in your next compliance report in accordance with Sec.
63.2520(e)(10)(i).
    (ii) If the conditions in paragraph (b)(6)(i) of this section are
not applicable, you must provide a 60-day advance notice in accordance
with Sec.  63.2520(e)(10)(ii) before switching.
    (7) As an alternative to determining the uncontrolled organic HAP
emissions as specified in Sec.  63.1257(d)(2)(i) and (ii), you may
elect to demonstrate that non-reactive organic HAP are the only HAP
used in the process and non-reactive HAP usage in the process is less
than 10,000 lb/yr. You must provide data and supporting rationale in
your notification of compliance status report explaining why the non-
reactive organic HAP usage will be less than 10,000 lb/yr. You must
keep records of the non-reactive organic HAP usage as specified in
Sec.  63.2525(e)(2) and include information in compliance reports as
specified in Sec.  63.2520(e)(5)(iv).
    (c) Exceptions to the requirements in subparts SS and WW of this
part 63 are specified in paragraphs (c)(1) through (9) of this section.
    (1) Process condensers. Process condensers, as defined in Sec.
63.2550(i), are not considered to be control devices for batch process
vents. You must determine whether a condenser is a control device for a
batch process vent or a process condenser from which the uncontrolled
HAP emissions are evaluated as part of the initial compliance
demonstration for each MCPU and report the results with supporting
rationale in your notification of compliance status report.
    (2) * * *
    (iii) As an alternative to conducting a performance test or design
evaluation to demonstrate initial compliance with a percent reduction
requirement for a condenser, you may determine controlled emissions
using the procedures specified in Sec.  63.1257(d)(3)(i)(B) and
paragraphs (b)(3) through (4) of this section.
* * * * *
    (v) If a process condenser is used for any boiling operations, you
must demonstrate that it is properly operated according to the
procedures specified in Sec.  63.1257(d)(2)(i)(C)(4)(ii) and
(d)(3)(iii)(B), and the demonstration must occur only during the
boiling operation. * * *
* * * * *
    (8) Terminology. When the term ``storage vessel'' is used in
subpart WW of this part 63, the term ``process tank,'' as defined in
Sec.  63.2550(i), applies for the purposes of this section.
    (9) Requirements for a biofilter. If you use a biofilter to meet
either the 95 percent reduction requirement or outlet concentration
requirement specified in Table 2 to this subpart, you must meet the
requirements specified in paragraphs (c)(9)(i) through (iv) of this
section.
    (i) Operational requirements. The biofilter must be operated at all
times when emissions are vented to it.
    (ii) Performance tests. To demonstrate initial compliance, you must
conduct a performance test according to the procedures in Sec.  63.997
and paragraphs (c)(9)(ii)(A) through (D) of this section. The design
evaluation option for small control devices is not applicable if you
use a biofilter.
    (A) Keep up-to-date, readily accessible continuous records of
either the biofilter bed temperature averaged over the full period of
the performance test or the outlet total organic HAP or TOC
concentration averaged over the full period of the performance test.
Include these data in your notification of compliance status report as
required by Sec.  63.999(b)(3)(ii).
    (B) Record either the percent reduction of total organic HAP
achieved by the biofilter determined as specified in Sec.
63.997(e)(2)(iv) or the concentration of TOC or total organic HAP
determined as specified in Sec.  63.997(e)(2)(iii) at the outlet of the
biofilter, as applicable.
    (C) If you monitor the biofilter bed temperature, you may elect to
use multiple thermocouples in representative locations throughout the
biofilter bed and calculate the average biofilter bed temperature
across these thermocouples prior to reducing the temperature data to 15
minute (or shorter) averages for purposes of establishing operating
limits for the biofilter. If you use multiple thermocouples, include
your rationale for their site selection in your notification of
compliance status report.
    (D) Submit a performance test report as specified in Sec.
63.999(a)(2)(i) and (ii). Include the records from paragraph
(c)(9)(ii)(B) of this section in your performance test report.
    (iii) Monitoring requirements. Use either a biofilter bed
temperature monitoring device (or multiple devices) capable of
providing a continuous record or an organic monitoring device capable
of providing a continuous record. Keep records of temperature or other
parameter monitoring results as specified in Sec.  63.998(b) and (c),
as applicable. General requirements for monitoring are contained in
Sec.  63.996. If you monitor temperature, the operating temperature
range must be based on only the temperatures measured during the
performance test; these data may not be supplemented by engineering
assessments or manufacturer's recommendations as otherwise allowed in
Sec.  63.999(b)(3)(ii)(A). If you establish the operating range
(minimum and maximum temperatures) using data from previous performance
tests in accordance with Sec.  63.996(c)(6), replacement of the
biofilter media with the same type of media is not considered a process
change under Sec.  63.997(b)(1). You may expand your biofilter bed
temperature operating range by conducting a repeat performance test
that demonstrates compliance with the 95 percent reduction requirement
or outlet concentration limit, as applicable.
    (iv) Repeat performance tests. You must conduct a repeat
performance test using the applicable methods specified in Sec.  63.997
within 2 years following the previous performance test and within 150
days after each replacement of any portion of the biofilter bed media
with a different type of media or each replacement of more than 50
percent (by volume) of the biofilter bed media with the same type of
media.

0
6. Section 63.2465 is amended by revising the section heading,
paragraph (b), and paragraph (d) to read as follows:

Sec.  63.2465  What requirements must I meet for process vents that
emit hydrogen halide and halogen HAP or HAP metals?

* * * * *
    (b) If any process vents within a process emit hydrogen halide and
halogen HAP, you must determine and sum the uncontrolled hydrogen
halide and halogen HAP emissions from each of the process vents within
the process using the procedures specified in Sec.  63.1257(d)(2)(i)
and/or (ii), as appropriate. When Sec.  63.1257(d)(2)(ii)(E) requires
documentation to be submitted in the precompliance report, it means the
notification of compliance status report for the purposes of this
paragraph.
* * * * *
    (d) To demonstrate compliance with the emission limit in Table 3 to
this subpart for HAP metals at a new source, you must comply with
paragraphs (d)(1) through (3) of this section.
    (1) Determine the mass emission rate of HAP metals based on process
knowledge, engineering assessment, or test data.
    (2) Conduct an initial performance test of each control device that
is used to comply with the emission limit for HAP metals specified in
Table 3 to this subpart. Conduct the performance test according to the
procedures in Sec.  63.997. Use Method 29 of appendix A of 40 CFR part
60 to determine the HAP metals at the inlet and outlet of each control

device, or use Method 5 of appendix A of 40 CFR part 60 to determine
the total particulate matter (PM) at the inlet and outlet of each
control device. You have demonstrated initial compliance if the overall
reduction of either HAP metals or total PM from the process is greater
than or equal to 97 percent by weight.
    (3) Comply with the monitoring requirements specified in Sec.
63.1366(b)(1)(xi) for each fabric filter used to control HAP metals.

0
7. Section 63.2470 is amended by:
0
a. Removing and reserving paragraph (b); and
0
b. Revising paragraph (e)(2) to read as follows:

Sec.  63.2470  What requirements must I meet for storage tanks?

* * * * *
    (e) * * *
    (2) To comply with Sec.  63.1253(f)(6)(i), the owner or operator of
an offsite cleaning or reloading facility must comply with Sec. Sec.
63.2445 through 63.2550 instead of complying with Sec.
63.1253(f)(7)(ii), except as specified in paragraph (e)(2)(i) or (ii)
of this section.
    (i) The reporting requirements in Sec.  63.2520 do not apply to the
owner or operator of the offsite cleaning or reloading facility.
    (ii) As an alternative to complying with the monitoring,
recordkeeping, and reporting provisions in Sec. Sec.  63.2445 through
63.2550, the owner or operator of an offsite cleaning or reloading
facility may comply as specified in Sec.  63.2535(a)(2) with any other
subpart of this part 63 which has monitoring, recordkeeping, and
reporting provisions as specified in Sec.  63.2535(a)(2).
* * * * *

0
8. Section 63.2475 is amended by removing paragraph (c).

0
9. Section 63.2480 is revised to read as follows:

Sec.  63.2480  What requirements must I meet for equipment leaks?

    (a) You must meet each requirement in Table 6 to this subpart that
applies to your equipment leaks, except as specified in paragraphs (b)
through (d) of this section.
    (b) If you comply with either subpart H or subpart UU of this part
63, you may elect to comply with the provisions in paragraphs (b)(1)
through (5) of this section as an alternative to the referenced
provisions in subpart H or subpart UU of this part.
    (1) The requirements for pressure testing in Sec.  63.179(b) or
Sec.  63.1036(b) may be applied to all processes, not just batch
processes.
    (2) For the purposes of this subpart, pressure testing for leaks in
accordance with Sec.  63.179(b) or Sec.  63.1036(b) is not required
after reconfiguration of an equipment train if flexible hose
connections are the only disturbed equipment.
    (3) For an existing source, you are not required to develop an
initial list of identification numbers for connectors as would
otherwise be required under Sec.  63.1022(b)(1) or Sec.
63.181(b)(1)(i).
    (4) For connectors in gas/vapor and light liquid service at an
existing source, you may elect to comply with the requirements in Sec.
63.169 or Sec.  63.1029 for connectors in heavy liquid service,
including all associated recordkeeping and reporting requirements,
rather than the requirements of Sec.  63.174 or Sec.  63.1027.
    (5) For pumps in light liquid service in an MCPU that has no
continuous process vents and is part of an existing source, you may
elect to consider the leak definition that defines a leak to be 10,000
parts per million (ppm) or greater as an alternative to the values
specified in Sec.  63.1026(b)(2)(i) through (iii) or Sec.
63.163(b)(2).
    (c) If you comply with 40 CFR part 65, subpart F, you may elect to
comply with the provisions in paragraphs (c)(1) through (9) of this
section as an alternative to the referenced provisions in 40 CFR part
65, subpart F.
    (1) The requirements for pressure testing in Sec.  65.117(b) may be
applied to all processes, not just batch processes.
    (2) For the purposes of this subpart, pressure testing for leaks in
accordance with Sec.  65.117(b) is not required after reconfiguration
of an equipment train if flexible hose connections are the only
disturbed equipment.
    (3) For an existing source, you are not required to develop an
initial list of identification numbers for connectors as would
otherwise be required under Sec.  65.103(b)(1).
    (4) You may elect to comply with the monitoring and repair
requirements specified in Sec.  65.108(e)(3) as an alternative to the
requirements specified in Sec.  65.108(a) through (d) for any
connectors at your affected source.
    (5) For pumps in light liquid service in an MCPU that has no
continuous process vents and is part of an existing source, you may
elect to consider the leak definition that defines a leak to be 10,000
ppm or greater as an alternative to the values specified in Sec.
65.107(b)(2)(i) through (iii).
    (6) When 40 CFR part 65, subpart F refers to the implementation
date specified in Sec.  65.1(f), it means the compliance date specified
in Sec.  63.2445.
    (7) When Sec. Sec.  65.105(f) and 65.117(d)(3) refer to Sec.  65.4,
it means Sec.  63.2525.
    (8) When Sec.  65.120(a) refers to Sec.  65.5(d), it means Sec.
63.2515.
    (9) When Sec.  65.120(b) refers to Sec.  65.5(e), it means Sec.
63.2520.
    (d) The provisions of this section do not apply to bench-scale
processes, regardless of whether the processes are located at the same
plant site as a process subject to the provisions of this subpart.

0
10. Section 63.2485 is amended by revising paragraph (a) and paragraphs
(c)(1) through (3) and by adding new paragraphs (m), (n), and (o) to
read as follows:

Sec.  63.2485  What requirements must I meet for wastewater streams and
liquid streams in open systems within an MCPU?

    (a) You must meet each requirement in Table 7 to this subpart that
applies to your wastewater streams and liquid streams in open systems
within an MCPU, except as specified in paragraphs (b) through (o) of
this section.
* * * * *
    (c) * * *
    (1) The total annual average concentration of compounds in Table 8
to this subpart is greater than or equal to 10,000 ppmw at any
flowrate, and the total annual load of compounds in Table 8 to this
subpart is greater than or equal to 200 lb/yr.
    (2) The total annual average concentration of compounds in Table 8
to this subpart is greater than or equal to 1,000 ppmw, and the annual
average flowrate is greater than or equal to 1 l/min.
    (3) The combined total annual average concentration of compounds in
Tables 8 and 9 to this subpart is greater than or equal to 30,000 ppmw,
and the combined total annual load of compounds in Tables 8 and 9 to
this subpart is greater than or equal to 1 tpy.
* * * * *
    (m) When Sec.  63.132(f) refers to ``a concentration of greater
than 10,000 ppmw of Table 9 compounds,'' the phrase ``a concentration
of greater than 30,000 ppmw of total partially soluble HAP (PSHAP) and
soluble HAP (SHAP) or greater than 10,000 ppmw of PSHAP'' shall apply
for the purposes of this subpart.
    (n) Alternative requirements for wastewater that is Group 1 for
soluble HAP only. The option specified in this paragraph (n) applies to
wastewater that is Group 1 for soluble HAP in accordance with paragraph
(c)(3) of this section and is discharged to biological treatment.
Except as provided in paragraph (n)(4) of this section, this option
does not apply to wastewater

that is Group 1 for partially soluble HAP in accordance with paragraph
(c)(1), (c)(2), or (c)(4) of this section. For wastewater that is Group
1 for SHAP, you need not comply with Sec. Sec.  63.133 through 63.137
for any equalization unit, neutralization unit, and/or clarifier prior
to the activated sludge unit, and you need not comply with the venting
requirements in Sec.  63.136(e)(2)(ii)(A) for lift stations with a
volume larger than 10,000 gal, provided you comply with the
requirements specified in paragraphs (n)(1) through (3) of this section
and all otherwise applicable requirements specified in Table 7 to this
subpart. For this option, the treatment requirements in Sec.  63.138
and the performance testing requirements in Sec.  63.145 do not apply
to the biological treatment unit, except as specified in paragraphs
(n)(2)(i) through (iv) of this section.
    (1) Wastewater must be hard-piped between the equalization unit,
clarifier, and activated sludge unit. This requirement does not apply
to the transfer between any of these types of units that are part of
the same structure and one unit overflows into the next.
    (2) Calculate the destruction efficiency of the biological
treatment unit using Equation 1 of this section in accordance with the
procedures described in paragraphs (n)(2)(i) through (vi) of this
section. You have demonstrated initial compliance if E is greater than
or equal to 90 percent.
[GRAPHIC] [TIFF OMITTED] TR14JY06.031

Where:

E = destruction efficiency of total PSHAP and SHAP for the biological
treatment unit including the equalization unit, neutralization unit,
and/or clarifier, percent;
QMWa = mass flow rate of total PSHAP and SHAP compounds
entering the equalization unit (or whichever of the three types of
units is first), kilograms per hour (kg/hr);
QMGe = mass flow rate of total PSHAP and SHAP compounds
emitted from the equalization unit, kg/hr;
QMGn = mass flow rate of total PSHAP and SHAP compounds
emitted from the neutralization unit, kg/hr;
QMGc = mass flow rate of total PSHAP and SHAP compounds
emitted from the clarifier, kg/hr
Fbio = site-specific fraction of PSHAP and SHAP compounds
biodegraded in the biological treatment unit.

    (i) Include all PSHAP and SHAP compounds in both Group 1 and Group
2 wastewater streams from all MCPU, except you may exclude any
compounds that meet the criteria specified in Sec.  63.145(a)(6)(ii) or
(iii).
    (ii) Conduct the demonstration under representative process unit
and treatment unit operating conditions in accordance with Sec.
63.145(a)(3) and (4).
    (iii) Determine PSHAP and SHAP concentrations and the total
wastewater flow rate at the inlet to the equalization unit in
accordance with Sec.  63.145(f)(1) and (2). References in Sec.
63.145(f)(1) and (2) to required mass removal and actual mass removal
do not apply for the purposes of this section.
    (iv) Determine Fbio for the activated sludge unit as
specified in Sec.  63.145(h), except as specified in paragraph
(n)(2)(iv)(A) or paragraph (n)(2)(iv)(B) of this section.
    (A) If the biological treatment process meets both of the
requirements specified in Sec.  63.145(h)(1)(i) and (ii), you may elect
to replace the Fbio term in Equation 1 of this section with
the numeral ``1.''
    (B) You may elect to assume fbio is zero for any
compounds on List 2 of Table 36 in subpart G.
    (v) Determine QMGe, QMGn, and QMGc
using EPA's WATER9 model or the most recent update to this model, and
conduct testing or use other procedures to validate the modeling
results.
    (vi) Submit the data and results of your demonstration, including
both a description of and the results of your WATER9 modeling
validation procedures, in your notification of compliance status report
as specified in Sec.  63.2520(d)(2)(ii).
    (3) As an alternative to the venting requirements in Sec.
63.136(e)(2)(ii)(A), a lift station with a volume larger than 10,000
gal may have openings necessary for proper venting of the lift station.
The size and other design characteristics of these openings may be
established based on manufacturer recommendations or engineering
judgment for venting under normal operating conditions. You must
describe the design of such openings and your supporting calculations
and other rationale in your notification of compliance status report.
    (4) For any wastewater streams that are Group 1 for both PSHAP and
SHAP, you may elect to meet the requirements specified in Table 7 to
this subpart for the PSHAP and then comply with paragraphs (n)(1)
through (3) of this section for the SHAP in the wastewater system. You
may determine the SHAP mass removal rate, in kg/hr, in treatment units
that are used to meet the requirements for PSHAP and add this amount to
both the numerator and denominator in Equation 1 of this section.
    (o) Compliance records. For each CPMS used to monitor a nonflare
control device for wastewater emissions, you must keep records as
specified in Sec.  63.998(c)(1) in addition to the records required in
Sec.  63.147(d).

0
11. Section 63.2495 is amended by revising paragraph (b)(1) to read as
follows:

Sec.  63.2495  How do I comply with the pollution prevention standard?

* * * * *
    (b) * * *
    (1) You must comply with the emission limitations and work practice
standards contained in Tables 1 through 7 of this subpart for all HAP
that are generated in the MCPU and that are not included in
consumption, as defined in Sec.  63.2550. If any vent stream routed to
the combustion control is a halogenated vent stream, as defined in
Sec.  63.2550, then hydrogen halides that are generated as a result of
combustion control must be controlled according to the requirements of
Sec.  63.994 and the requirements referenced therein.
* * * * *

0
12. Section 63.2520 is amended by:
0
a. Revising paragraph (c)(4);
0
b. Revising paragraph (d)(2)(i) and (d)(2)(ix);
0
c. Revising paragraphs (e)(5) introductory text, (e)(5)(ii)(C), and
(e)(5)(iii)(K) and adding new paragraph (e)(5)(iv);
0
d. Revising paragraph (e)(9); and
0
e. Revising the first two sentences of paragraph (e)(10)(i) and
paragraph (e)(10)(ii)(C) to read as follows:

Sec.  63.2520  What reports must I submit and when?

* * * * *
    (c) * * *
    (4) Data and rationale used to support an engineering assessment to
calculate uncontrolled emissions in accordance with Sec.
63.1257(d)(2)(ii). This requirement does not apply to

calculations of hydrogen halide and halogen HAP emissions as specified
in Sec.  63.2465(b), to determinations that the total HAP concentration
is less than 50 ppmv, or if you use previous test data to establish the
uncontrolled emissions.
* * * * *
    (d) * * *
    (2) * * *
    (i) The results of any applicability determinations, emission
calculations, or analyses used to identify and quantify HAP usage or
HAP emissions from the affected source.
* * * * *
    (ix) Records as specified in Sec.  63.2535(l)(1) through (3) of
process units used to create a PUG and calculations of the initial
primary product of the PUG.
    (e) * * *
    (5) The compliance report must contain the information on
deviations, as defined in Sec.  63.2550, according to paragraphs
(e)(5)(i), (ii), (iii), and (iv) of this section.
* * * * *
    (ii) * * *
    (C) Operating logs of processes with batch vents from batch
operations for the day(s) during which the deviation occurred, except
operating logs are not required for deviations of the work practice
standards for equipment leaks.
    (iii) * * *
    (K) Operating logs of processes with batch vents from batch
operations for each day(s) during which the deviation occurred.
* * * * *
    (iv) If you documented in your notification of compliance status
report that an MCPU has Group 2 batch process vents because the non-
reactive HAP is the only HAP and usage is less than 10,000 lb/yr, the
total uncontrolled organic HAP emissions from the batch process vents
in an MCPU will be less than 1,000 lb/yr for the anticipated number of
standard batches, or total uncontrolled hydrogen halide and halogen HAP
emissions from all batch process vents and continuous process vents in
a process are less than 1,000 lb/yr, include the records associated
with each calculation required by Sec.  63.2525(e) that exceeds an
applicable HAP usage or emissions threshold.
* * * * *
    (9) Applicable records and information for periodic reports as
specified in referenced subparts F, G, H, SS, UU, WW, and GGG of this
part and subpart F of 40 CFR part 65.
    (10) * * *
    (i) Except as specified in paragraph (e)(10)(ii) of this section,
whenever you make a process change, or change any of the information
submitted in the notification of compliance status report or a previous
compliance report, that is not within the scope of an existing
operating scenario, you must document the change in your compliance
report. A process change does not include moving within a range of
conditions identified in the standard batch, and a nonstandard batch
does not constitute a process change. * * *
* * * * *
    (ii) * * *
    (C) A change from Group 2 to Group 1 for any emission point except
for batch process vents that meet the conditions specified in Sec.
63.2460(b)(6)(i).

0
13. Section 63.2525 is amended by revising paragraphs (a), (c), and (e)
to read as follows:

Sec.  63.2525  What records must I keep?

* * * * *
    (a) Each applicable record required by subpart A of this part 63
and in referenced subparts F, G, SS, UU, WW, and GGG of this part 63
and in referenced subpart F of 40 CFR part 65.
* * * * *
    (c) A schedule or log of operating scenarios for processes with
batch vents from batch operations updated each time a different
operating scenario is put into effect.
* * * * *
    (e) The information specified in paragraph (e)(2), (3), or (4) of
this section, as applicable, for each process with Group 2 batch
process vents or uncontrolled hydrogen halide and halogen HAP emissions
from the sum of all batch and continuous process vents less than 1,000
lb/yr. No records are required for situations described in paragraph
(e)(1) of this section.
    (1) No records are required if you documented in your notification
of compliance status report that the MCPU meets any of the situations
described in paragraph (e)(1)(i), (ii), or (iii) of this section.
    (i) The MCPU does not process, use, or generate HAP.
    (ii) You control the Group 2 batch process vents using a flare that
meets the requirements of Sec.  63.987.
    (iii) You control the Group 2 batch process vents using a control
device for which your determination of worst case for initial
compliance includes the contribution of all Group 2 batch process
vents.
    (2) If you documented in your notification of compliance status
report that an MCPU has Group 2 batch process vents because the non-
reactive organic HAP is the only HAP and usage is less than 10,000 lb/
yr, as specified in Sec.  63.2460(b)(7), you must keep records of the
amount of HAP material used, and calculate the daily rolling annual sum
of the amount used no less frequently than monthly. If a record
indicates usage exceeds 10,000 lb/yr, you must estimate emissions for
the preceding 12 months based on the number of batches operated and the
estimated emissions for a standard batch, and you must begin
recordkeeping as specified in paragraph (e)(4) of this section. After 1
year, you may revert to recording only usage if the usage during the
year is less than 10,000 lb.
    (3) If you documented in your notification of compliance status
report that total uncontrolled organic HAP emissions from the batch
process vents in an MCPU will be less than 1,000 lb/yr for the
anticipated number of standard batches, then you must keep records of
the number of batches operated and calculate a daily rolling annual sum
of batches operated no less frequently than monthly. If the number of
batches operated results in organic HAP emissions that exceed 1,000 lb/
yr, you must estimate emissions for the preceding 12 months based on
the number of batches operated and the estimated emissions for a
standard batch, and you must begin recordkeeping as specified in
paragraph (e)(4) of this section. After 1 year, you may revert to
recording only the number of batches if the number of batches operated
during the year results in less than 1,000 lb of organic HAP emissions.
    (4) If you meet none of the conditions specified in paragraphs
(e)(1) through (3) of this section, you must keep records of the
information specified in paragraphs (e)(4)(i) through (iv) of this
section.
    (i) A record of the day each batch was completed and/or the
operating hours per day for continuous operations with hydrogen halide
and halogen emissions.
    (ii) A record of whether each batch operated was considered a
standard batch.
    (iii) The estimated uncontrolled and controlled emissions for each
batch that is considered to be a nonstandard batch.
    (iv) Records of the daily 365-day rolling summations of emissions,
or alternative records that correlate to the emissions (e.g., number of
batches), calculated no less frequently than monthly.
* * * * *

0
14. Section 63.2535 is amended by revising paragraphs (a) and (k) to
read as follows:

Sec.  63.2535  What compliance options do I have if part of my plant is
subject to both this subpart and another subpart?

* * * * *
    (a) Compliance with other subparts of this part 63. (1) If you have
an MCPU that includes a batch process vent that also is part of a CMPU
as defined in subparts F and G of this part 63, you must comply with
the emission limits; operating limits; work practice standards; and the
compliance, monitoring, reporting, and recordkeeping requirements for
batch process vents in this subpart, and you must continue to comply
with the requirements in subparts F, G, and H of this part 63 that are
applicable to the CMPU and associated equipment.
    (2) After the compliance dates specified in Sec.  63.2445, at an
offsite reloading or cleaning facility subject to Sec.  63.1253(f), as
referenced from Sec.  63.2470(e), compliance with the monitoring,
recordkeeping, and reporting provisions of any other subpart of this
part 63 constitutes compliance with the monitoring, recordkeeping, and
reporting provisions of Sec.  63.1253(f)(7)(ii) or Sec.
63.1253(f)(7)(iii). You must identify in your notification of
compliance status report required by Sec.  63.2520(d) the subpart of
this part 63 with which the owner or operator of the offsite reloading
or cleaning facility complies.
* * * * *
    (k) Compliance with 40 CFR part 60, subpart VV, and 40 CFR part 61,
subpart V. After the compliance date specified in Sec.  63.2445, if you
have an affected source with equipment that is also subject to the
requirements of 40 CFR part 60, subpart VV, or 40 CFR part 61, subpart
V, you may elect to apply this subpart to all such equipment. After the
compliance date specified in Sec.  63.2445, if you have an affected
source with equipment to which this subpart does not apply, but which
is subject to the requirements of 40 CFR part 60, subpart VV, or 40 CFR
part 61, subpart V, you may elect to apply this subpart to all such
equipment. If you elect either of these methods of compliance, you must
consider all total organic compounds, minus methane and ethane, in such
equipment for purposes of compliance with this subpart, as if they were
organic HAP. Compliance with the provisions of this subpart, in the
manner described in this paragraph (k), will constitute compliance with
40 CFR part 60, subpart VV and 40 CFR part 61, subpart V, as
applicable.
* * * * *

0
15. Section 63.2550 is amended by:
0
a. Revising paragraph (b);
0
b. Revising the last sentence in paragraph (i) introductory text;
0
c. Revising paragraph (8) in the definition of the term ``batch process
vent'' in paragraph (i);
0
d. Adding new paragraphs (6) and (7) to the definition of the term
``continuous process vent'' in paragraph (i);
0
e. Revising the definition of the term ``Group 1 continuous process
vent'' in paragraph (i);
0
f. Revising the definition of the term ``isolated intermediate'' in
paragraph (i);
0
g. Adding new paragraph (6) to the definition of the term
``miscellaneous organic chemical manufacturing process'' in paragraph
(i);
0
h. Revising the definition of the term ``recovery device'' in paragraph
(i);
0
i. Revising the definition of the term ``surge control vessel'' in
paragraph (i);
0
j. Revising the introductory text of the definition of the term
``wastewater'' in paragraph (i); and
0
k. Adding, in alphabetical order, new definitions for the terms
``biofilter,'' ``continuous operation,'' ``emission point,'' ``halogen
atoms,'' ``HAP metals,'' ``point of determination,'' and ``process
condenser'' in paragraph (i) to read as follows:

Sec.  63.2550  What definitions apply to this subpart?

* * * * *
    (b) For an affected source complying with the requirements in 40
CFR part 65, subpart F, the terms used in this subpart and in 40 CFR
part 65, subpart F have the meaning given to them in Sec.  65.2.
* * * * *
    (i) * * * If a term is defined in Sec.  63.2, Sec.  63.101, Sec.
63.111, Sec.  63.981, Sec.  63.1020, Sec.  63.1061, Sec.  63.1251, or
Sec.  65.2 and in this paragraph (i), the definition in this paragraph
(i) applies for the purposes of this subpart.
* * * * *
    Batch process vent * * *
    (8) Emission streams from emission episodes that are undiluted and
uncontrolled containing less than 50 ppmv HAP are not part of any batch
process vent. A vent from a unit operation, or a vent from multiple
unit operations that are manifolded together, from which total
uncontrolled HAP emissions are less than 200 lb/yr is not a batch
process vent; emissions for all emission episodes associated with the
unit operation(s) must be included in the determination of the total
mass emitted. The HAP concentration or mass emission rate may be
determined using any of the following: process knowledge that no HAP
are present in the emission stream; an engineering assessment as
discussed in Sec.  63.1257(d)(2)(ii), except that you do not need to
demonstrate that the equations in Sec.  63.1257(d)(2)(i) do not apply,
and the precompliance reporting requirements specified in Sec.
63.1257(d)(2)(ii)(E) do not apply for the purposes of this
demonstration; equations specified in Sec.  63.1257(d)(2)(i), as
applicable; test data using Method 18 of 40 CFR part 60, appendix A; or
any other test method that has been validated according to the
procedures in Method 301 of appendix A of this part.
* * * * *
    Biofilter means an enclosed control system such as a tank or series
of tanks with a fixed roof that contact emissions with a solid media
(such as bark) and use microbiological activity to transform organic
pollutants in a process vent stream to innocuous compounds such as
carbon dioxide, water, and inorganic salts. Wastewater treatment
processes such as aeration lagoons or activated sludge systems are not
considered to be biofilters.
* * * * *
    Continuous operation means any operation that is not a batch
operation.
    Continuous process vent * * *
    (6) The references to an ``air oxidation reactor, distillation
unit, or reactor'' in Sec.  63.107 mean any continuous operation for
the purposes of this subpart.
    (7) A separate determination is required for the emissions from
each MCPU, even if emission streams from two or more MCPU are combined
prior to discharge to the atmosphere or to a control device.
* * * * *
    Emission point means each continuous process vent, batch process
vent, storage tank, transfer rack, and wastewater stream.
* * * * *
    Group 1 continuous process vent means a continuous process vent for
which the flow rate is greater than or equal to 0.005 standard cubic
meter per minute, and the total resource effectiveness index value,
calculated according to Sec.  63.2455(b), is less than or equal to 1.9
at an existing source and less than or equal to 5.0 at a new source.
* * * * *
    Halogen atoms mean chlorine and fluorine.
    HAP metals means the metal portion of antimony compounds, arsenic
compounds, beryllium compounds, cadmium compounds, chromium compounds,
cobalt compounds, lead compounds, manganese compounds, mercury
compounds, nickel compounds, and selenium compounds.
* * * * *

    Isolated intermediate means a product of a process that is stored
before subsequent processing. An isolated intermediate is usually a
product of a chemical synthesis, fermentation, or biological extraction
process. Storage of an isolated intermediate marks the end of a
process. Storage occurs at any time the intermediate is placed in
equipment used solely for storage. The storage equipment is part of the
MCPU that produces the isolated intermediate and is not assigned as
specified in Sec.  63.2435(d).
    Miscellaneous organic chemical manufacturing process * * *
    (6) The end of a process that produces a solid material is either
up to and including the dryer or extruder, or for a polymer production
process without a dryer or extruder, it is up to and including the
extruder, die plate, or solid-state reactor, except in two cases. If
the dryer, extruder, die plate, or solid-state reactor is followed by
an operation that is designed and operated to remove HAP solvent or
residual HAP monomer from the solid, then the solvent removal operation
is the last step in the process. If the dried solid is diluted or mixed
with a HAP-based solvent, then the solvent removal operation is the
last step in the process.
* * * * *
    Point of determination means each point where process wastewater
exits the MCPU or control device.
    Note to definition for point of determination: The regulation
allows determination of the characteristics of a wastewater stream: At
the point of determination; or downstream of the point of determination
if corrections are made for changes in flow rate and annual average
concentration of soluble HAP and partially soluble HAP compounds as
determined according to procedures in Sec.  63.144 of subpart G in this
part 63. Such changes include losses by air emissions; reduction of
annual average concentration or changes in flow rate by mixing with
other water or wastewater streams; and reduction in flow rate or annual
average concentration by treating or otherwise handling the wastewater
stream to remove or destroy HAP.
* * * * *
    Process condenser means a condenser whose primary purpose is to
recover material as an integral part of an MCPU. All condensers
recovering condensate from an MCPU at or above the boiling point or all
condensers in line prior to a vacuum source are considered process
condensers. Typically, a primary condenser or condensers in series are
considered to be integral to the MCPU if they are capable of and
normally used for the purpose of recovering chemicals for fuel value
(i.e., net positive heating value), use, reuse or for sale for fuel
value, use, or reuse. This definition does not apply to a condenser
that is used to remove materials that would hinder performance of a
downstream recovery device as follows:
    (1) To remove water vapor that would cause icing in a downstream
condenser, or
    (2) To remove water vapor that would negatively affect the
adsorption capacity of carbon in a downstream carbon adsorber, or
    (3) To remove high molecular weight organic compounds or other
organic compounds that would be difficult to remove during regeneration
of a downstream carbon adsorber.
* * * * *
    Recovery device means an individual unit of equipment used for the
purpose of recovering chemicals from process vent streams and from
wastewater streams for fuel value (i.e., net positive heating value),
use, reuse, or for sale for fuel value, use, or reuse. For the purposes
of meeting requirements in Table 2 to this subpart, the recovery device
must not be a process condenser and must recover chemicals to be reused
in a process on site. Examples of equipment that may be recovery
devices include absorbers, carbon adsorbers, condensers, oil-water
separators or organic-water separators, or organic removal devices such
as decanters, strippers, or thin-film evaporation units. To be a
recovery device for a wastewater stream, a decanter and any other
equipment based on the operating principle of gravity separation must
receive only multi-phase liquid streams.
* * * * *
    Surge control vessel means feed drums, recycle drums, and
intermediate vessels as part of any continuous operation. Surge control
vessels are used within an MCPU when in-process storage, mixing, or
management of flowrates or volumes is needed to introduce material into
continuous operations.
* * * * *
    Wastewater means water that is discarded from an MCPU or control
device through a POD and that contains either: an annual average
concentration of compounds in Tables 8 and 9 to this subpart of at
least 5 ppmw and has an annual average flowrate of 0.02 liters per
minute or greater; or an annual average concentration of compounds in
Tables 8 and 9 to this subpart of at least 10,000 ppmw at any flowrate.
Wastewater means process wastewater or maintenance wastewater. The
following are not considered wastewater for the purposes of this
subpart:
* * * * *

0
16. Table 2 to subpart FFFF of part 63 is amended by revising entry 1
to read as follows:

 Table 2 to Subpart FFFF of Part 63.--Emission Limits and Work Practice
                    Standards for Batch Process Vents
                              * * * * * * *
------------------------------------------------------------------------
                                                        And you must . .
        For each . . .            Then you must . . .           .
------------------------------------------------------------------------
1. Process with Group 1 batch   a. Reduce collective    Not applicable.
 process vents.                  uncontrolled organic
                                 HAP emissions from
                                 the sum of all batch
                                 process vents within
                                 the process by >=98
                                 percent by weight by
                                 venting emissions
                                 from a sufficient
                                 number of the vents
                                 through one or more
                                 closed-vent systems
                                 to any combination of
                                 control devices
                                 (except a flare); or
                                b. Reduce collective    Not applicable.
                                 uncontrolled organic
                                 HAP emissions from
                                 the sum of all batch
                                 process vents within
                                 the process by >=95
                                 percent by weight by
                                 venting emissions
                                 from a sufficient
                                 number of the vents
                                 through one or more
                                 closed-vent systems
                                 to any combination of
                                 recovery devices or a
                                 biofilter, except you
                                 may elect to comply
                                 with the requirements
                                 of subpart WW of this
                                 part for any process
                                 tank; or

                                c. Reduce uncontrolled  For all other
                                 organic HAP emissions   batch process
                                 from one or more        vents within
                                 batch process vents     the process,
                                 within the process by   reduce
                                 venting through a       collective
                                 closed-vent system to   organic HAP
                                 a flare or by venting   emissions as
                                 through one or more     specified in
                                 closed-vent systems     item 1.a and/or
                                 to any combination of   item 1.b of
                                 control devices         this table.
                                 (excluding a flare)
                                 that reduce organic
                                 HAP to an outlet
                                 concentration < =20
                                 ppmv as TOC or total
                                 organic HAP.

                              * * * * * * *
------------------------------------------------------------------------

0
17. Table 3 to subpart FFFF of part 63 is revised to read as follows:

Table 3 to Subpart FFFF of Part 63.--Emission Limits for Hydrogen Halide
  and Halogen HAP Emissions or HAP Metals Emissions From Process Vents
                              * * * * * * *
------------------------------------------------------------------------
             For each . . .                       You must . . .
------------------------------------------------------------------------
1. Process with uncontrolled hydrogen    a. Reduce collective hydrogen
 halide and halogen HAP emissions from    halide and halogen HAP
 process vents >=1,000 lb/yr.             emissions by >=99 percent by
                                          weight or to an outlet
                                          concentration < =20 ppmv by
                                          venting through one or more
                                          closed-vent systems to any
                                          combination of control
                                          devices, or
                                         b. Reduce the halogen atom mass
                                          emission rate from the sum of
                                          all batch process vents and
                                          each individual continuous
                                          process vent to < =0.45 kg/hr
                                          by venting through one or more
                                          closed-vent systems to a
                                          halogen reduction device.
2. Process at a new source with          Reduce overall emissions of HAP
 uncontrolled emissions from process      metals by >=97 percent by
 vents >=150 lb/yr of HAP metals.         weight.
------------------------------------------------------------------------

0
18. Table 4 to subpart FFFF of part 63 is amended by revising entry 1
to read as follows:

 Table 4 to Subpart FFFF of Part 63.--Emission Limits for Storage Tanks
                              * * * * * * *
------------------------------------------------------------------------
                                                         Then you must .
        For each . . .              For which . . .            . .
------------------------------------------------------------------------
1. Group 1 storage tank.......  a. The maximum true     i. Reduce total
                                 vapor pressure of       HAP emissions
                                 total HAP at the        by >=95 percent
                                 storage temperature     by weight or to
                                 is >=76.6 kilopascals.  <=20 ppmv of
                                                         TOC or organic
                                                         HAP and < =20
                                                         ppmv of
                                                         hydrogen halide
                                                         and halogen HAP
                                                         by venting
                                                         emissions
                                                         through a
                                                         closed vent
                                                         system to any
                                                         combination of
                                                         control devices
                                                         (excluding a
                                                         flare); or
                                                        ii. Reduce total
                                                         organic HAP
                                                         emissions by
                                                         venting
                                                         emissions
                                                         through a
                                                         closed vent
                                                         system to a
                                                         flare; or
                                                        iii. Reduce
                                                         total HAP
                                                         emissions by
                                                         venting
                                                         emissions to a
                                                         fuel gas system
                                                         or process in
                                                         accordance with
                                                         Sec.
                                                         63.982(d) and
                                                         the
                                                         requirements
                                                         referenced
                                                         therein.
                                b. The maximum true     i. Comply with
                                 vapor pressure of       the
                                 total HAP at the        requirements of
                                 storage temperature     subpart WW of
                                 is < 76.6 kilopascals.   this part,
                                                         except as
                                                         specified in
                                                         Sec.   63.2470;
                                                         or

                                                        ii. Reduce total
                                                         HAP emissions
                                                         by >=95 percent
                                                         by weight or to
                                                         < =20 ppmv of
                                                         TOC or organic
                                                         HAP and < =20
                                                         ppmv of
                                                         hydrogen halide
                                                         and halogen HAP
                                                         by venting
                                                         emissions
                                                         through a
                                                         closed vent
                                                         system to any
                                                         combination of
                                                         control devices
                                                         (excluding a
                                                         flare); or
                                                        iii. Reduce
                                                         total organic
                                                         HAP emissions
                                                         by venting
                                                         emissions
                                                         through a
                                                         closed vent
                                                         system to a
                                                         flare; or
                                                        iv. Reduce total
                                                         HAP emissions
                                                         by venting
                                                         emissions to a
                                                         fuel gas system
                                                         or process in
                                                         accordance with
                                                         Sec.
                                                         63.982(d) and
                                                         the
                                                         requirements
                                                         referenced
                                                         therein.

                              * * * * * * *
------------------------------------------------------------------------

0
19. Table 5 to subpart FFFF of part 63 is amended by revising entry 1
to read as follows:

 Table 5 to Subpart FFFF of Part 63.--Emission Limits and Work Practice
                      Standards for Transfer Racks
                              * * * * * * *
------------------------------------------------------------------------
          For each . . .                       You must . . .
------------------------------------------------------------------------
1. Group 1 transfer rack..........  a. Reduce emissions of total organic
                                     HAP by >=98 percent by weight or to
                                     an outlet concentration < =20 ppmv
                                     as organic HAP or TOC by venting
                                     emissions through a closed-vent
                                     system to any combination of
                                     control devices (except a flare);
                                     or
                                    b. Reduce emissions of total organic
                                     HAP by venting emissions through a
                                     closed-vent system to a flare; or
                                    c. Reduce emissions of total organic
                                     HAP by venting emissions to a fuel
                                     gas system or process in accordance
                                     with Sec.   63.982(d) and the
                                     requirements referenced therein; or
                                    d. Use a vapor balancing system
                                     designed and operated to collect
                                     organic HAP vapors displaced from
                                     tank trucks and railcars during
                                     loading and route the collected HAP
                                     vapors to the storage tank from
                                     which the liquid being loaded
                                     originated or to another storage
                                     tank connected by a common header.

                              * * * * * * *
------------------------------------------------------------------------

0
20. Table 6 to subpart FFFF of part 63 is amended by revising entry 1
to read as follows:

  Table 6 to Subpart FFFF of Part 63.--Requirements for Equipment Leaks
                              * * * * * * *
------------------------------------------------------------------------
           For all . . .                       You must . . .
------------------------------------------------------------------------
1. Equipment that is in organic     a. Comply with the requirements of
 HAP service.                        subpart UU of this part 63 and the
                                     requirements referenced therein,
                                     except as specified in Sec.
                                     63.2480(b) and (d); or
                                    b. Comply with the requirements of
                                     subpart H of this part 63 and the
                                     requirements referenced therein,
                                     except as specified in Sec.
                                     63.2480(b) and (d); or
                                    c. Comply with the requirements of
                                     40 CFR part 65, subpart F and the
                                     requirements referenced therein,
                                     except as specified in Sec.
                                     63.2480(c) and (d).

                              * * * * * * *
------------------------------------------------------------------------

0
21. Table 8 to subpart FFFF of part 63 is amended by removing entry 10
and redesignating entries 11 through 61 as entries 10 through 60.
0
22. Table 12 to subpart FFFF of part 63 is amended as follows:

0
a. Removing the entries for Sec. Sec.  63.8(c)(4)(i)-(ii) and
63.10(e)(1)-(2);
0
b. Adding new entries for Sec. Sec.  63.8(c)(4)(i), 63.8(c)(4)(ii),
63.10(e)(1), 63.10(e)(2)(i), and 63.10(e)(2)(ii); and
0
c. Revising the entries for Sec. Sec.  63.8(c)(4), 63.8(c)(6),
63.8(c)(7)-(8), 63.8(d), 63.8(e), 63.9(g), 63.10(b)(2)(xiii), and
63.10(c)(1)-(6), (9)-(15).

     Table 12 to Subpart FFFF of Part 63.--Applicability of General
                       Provisions to Subpart FFFF
                              * * * * * * *
------------------------------------------------------------------------
           Citation                  Subject            Explanation
------------------------------------------------------------------------

                              * * * * * * *
Sec.   63.8(c)(4).............  CMS Requirements.  Only for CEMS.
                                                    Requirements for
                                                    CPMS are specified
                                                    in referenced
                                                    subparts G and SS of
                                                    part 63.
                                                    Requirements for
                                                    COMS do not apply
                                                    because subpart FFFF
                                                    does not require
                                                    continuous opacity
                                                    monitoring systems
                                                    (COMS).
Sec.   63.8(c)(4)(i)..........  COMS Measurement   No; subpart FFFF does
                                 and Recording      not require COMS.
                                 Frequency.
Sec.   63.8(c)(4)(ii).........  CEMS Measurement   Yes.
                                 and Recording
                                 Frequency.

                              * * * * * * *
Sec.   63.8(c)(6).............  CMS Requirements.  Only for CEMS;
                                                    requirements for
                                                    CPMS are specified
                                                    in referenced
                                                    subparts G and SS of
                                                    this part 63.
                                                    Requirements for
                                                    COMS do not apply
                                                    because subpart FFFF
                                                    does not require
                                                    COMS.
Sec.   63.8(c)(7)-(8).........  CMS Requirements.  Only for CEMS.
                                                    Requirements for
                                                    CPMS are specified
                                                    in referenced
                                                    subparts G and SS of
                                                    part 63.
                                                    Requirements for
                                                    COMS do not apply
                                                    because subpart FFFF
                                                    does not require
                                                    COMS.
Sec.   63.8(d)................  CMS Quality        Only for CEMS.
                                 Control.
Sec.   63.8(e)................  CMS Performance    Only for CEMS.
                                 Evaluation.        Section
                                                    63.8(e)(5)(ii) does
                                                    not apply because
                                                    subpart FFFF does
                                                    not require COMS.

                              * * * * * * *
Sec.   63.9(g)................  Additional         Only for CEMS.
                                 Notifications      Section 63.9(g)(2)
                                 When Using CMS.    does not apply
                                                    because subpart FFFF
                                                    does not require
                                                    COMS.

                              * * * * * * *
Sec.   63.10(b)(2)(xiii)......  Records..........  Only for CEMS.

                              * * * * * * *
Sec.   63.10(c)(1)-(6),(9)-     Records..........  Only for CEMS.
 (15).                                              Recordkeeping
                                                    requirements for
                                                    CPMS are specified
                                                    in referenced
                                                    subparts G and SS of
                                                    this part 63.

                              * * * * * * *
Sec.   63.10(e)(1)............  Additional CEMS    Yes.
                                 Reports.
Sec.   63.10(e)(2)(i).........  Additional CMS     Only for CEMS.
                                 Reports.
Sec.   63.10(e)(2)(ii)........  Additional COMS    No. Subpart FFFF does
                                 Reports.           not require COMS.

                              * * * * * * *
------------------------------------------------------------------------

[FR Doc. 06-5970 Filed 7-13-06; 8:45 am]

BILLING CODE 6560-50-P


[Federal Register: November 15, 2007 (Volume 72, Number 220)]
[Rules and Regulations]
[Page 64139-64143]
[DOCID:fr15no07-8]

-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2007-27619; Directorate Identifier 2005-NM-164-AD;
Amendment 39-15257; AD 2007-23-11]
RIN 2120-AA64

Airworthiness Directives; Boeing Model 777 Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain Boeing Model 777 airplanes. This AD requires repetitive
measurements of the freeplay of certain joints of the trailing edge
flap supports; repetitive lubrication of the support joints; and
related investigative and corrective actions if necessary. This AD also
provides for modifying certain components of the trailing edge flap
supports, which extends the intervals for the repetitive measurements,
and revising the maintenance practices of the maintenance planning data
document. This AD results from reports of excessive wear of the pins,
bushings, and bearings, and corrosion at the joints of the outboard
trailing edge flap supports. We are issuing this AD to prevent wear and
corrosion at the flap support joints, which could result in loss of the
trailing edge flap and possible loss of control of the airplane.

DATES: This AD becomes effective December 20, 2007.
    The Director of the Federal Register approved the incorporation by
reference of certain publications listed in the AD as of December 20,
2007.

ADDRESSES: For service information identified in this AD, contact
Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124-
2207.

Examining the Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov
; or in person at the Docket Management Facility

between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The AD docket contains this AD, the regulatory evaluation,
any comments received, and other information. The address for the
Docket Office (telephone<PHONE_NUMBER>) is the Document Management
Facility, U.S. Department of Transportation, Docket Operations, M-30,
West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE.,
Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Gary Oltman, Aerospace Engineer,
Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office,
1601 Lind

Avenue SW., Renton, Washington 98057-3356; telephone<PHONE_NUMBER>;
fax<PHONE_NUMBER>.

Discussion

    The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 to include an AD that would apply to certain Boeing Model
777 airplanes. That NPRM was published in the Federal Register on March
20, 2007 (72 FR 13048). That NPRM proposed to require repetitive
measurements of the freeplay of certain joints of the trailing edge
flap supports; repetitive lubrication of the support joints; and
related investigative and corrective actions if necessary. That NPRM
also provides for modifying certain components of the trailing edge
flap supports, which extends the intervals for the repetitive
measurements, and revising the maintenance practices of the maintenance
planning data document.

Comments

    We provided the public the opportunity to participate in the
development of this AD. We have considered the comments received.

Request To Change Paragraph (f)(1) of the NPRM

    Boeing asks that paragraph (f)(1) be changed to read ``For
airplanes that have accumulated 6,000 total flight cycles or more on or
before the effective date of this AD and on which a teardown inspection
has not been accomplished before the effective date of this AD.''
Boeing states that with the use of the word ``or'' in place of the word
``and'' as noted above, the NPRM could include ``For airplanes on which
a teardown inspection has not been accomplished before the effective
date of this AD'' and could be interpreted as including new airplanes.
Boeing adds that this may be confusing as the NPRM provides coverage
for airplanes that have accumulated fewer than 6,000 cycles, or new
airplanes.
    We agree with changing ``or'' to ``and'' as requested by Boeing
because the use of the word ``or'' could be interpreted as applying to
all Model 777 airplanes in the applicability, regardless of the total
flight cycles, if a teardown inspection has not been done. We have
changed paragraph (f)(1) of this AD accordingly.
    We disagree with the interpretation that the AD applicability could
include new airplanes, because Boeing Service Bulletin 777-27A0066,
Revision 1, dated May 18, 2006, clearly identifies affected airplanes
as having line numbers 1 through 546 only, and we refer to that service
bulletin in paragraph (c), ``Applicability,'' of the NPRM. We have made
no change to the AD in this regard.

Request To Change Description of Relevant Service Information Section

    Air France asks that certain language specified in the Relevant
Service Information section of the NPRM be changed. Air France states
that the last paragraph of the description of Service Bulletin 777-
27A0066, Revision 1, specifies that accomplishing the actions in Boeing
Alert Service Bulletin 777-27A0071, Revision 1, dated October 16, 2006,
eliminates the need for the repetitive measurements and lubrications of
certain trailing edge flap supports. Air France notes that Alert
Service Bulletin 777-27A0071, Revision 1, does not eliminate the need
for the repetitive inspections, but only extends the interval for the
repetitive inspections.
    We acknowledge the commenter's concern; however, that section of
the preamble does not reappear in the final rule. We have provided
clarification as follows: Service Bulletin 777-27A0071, Revision 1,
specifies that accomplishing the modification in that service bulletin
constitutes terminating action for the actions specified in Service
Bulletin 777-27A0066, Revision 1, for the associated trailing edge flap
support only. The actions required by paragraph (l) of the AD require
continuing periodic inspections and maintenance of the support joints
of the trailing edge flap, which is part of the maintenance inspection
program. Those are the inspections that are not terminated by the AD.
As part of the maintenance program, those inspections would generally
be accomplished at the same time or in combination with normally
scheduled airplane inspections and other maintenance program tasks. In
light of these facts, we have made no change to the AD.
    Japan Airlines International (JAL) asks that the NPRM be changed to
allow modification of the flap support mechanism by incorporating
Service Bulletin 777-27A0071, Revision 1, dated October 16, 2006,
instead of doing a support teardown inspection or temporary return to
service inspection. JAL refers to the Relevant Service Information
section of the NPRM, which describes procedures for disassembling any
joint that exceeds the freeplay limits specified in Service Bulletin
777-27A0066, Revision 1, and doing the related investigative and
corrective actions in the ``support teardown inspection.'' JAL also
refers to the teardown inspections required by paragraphs (h)(1),
(h)(2), and (h)(3) of the NPRM. JAL notes that as an option to the
support teardown inspection, for certain airplanes, the service
bulletin describes procedures for a ``temporary return to service''
inspection.
    We agree with JAL that allowing operators to accomplish the
modification specified in Alert Service Bulletin 777-27A0071, Revision
1, instead of the teardown inspection or temporary return to service is
an acceptable option. However, we do not agree to change the AD because
that option is already specified in this AD. We have made no change to
the AD in this regard.

Requests To Clarify Actions in Paragraph (k) of the NPRM

    Air France asks that we include in paragraph (k) of the NPRM the
extension interval of 16,000 flight cycles for the repetitive
measurements allowed by the application of Alert Service Bulletin 777-
27A0071, Revision 1, dated October 16, 2006. Air France notes that
paragraph (k) should specify accomplishing the actions in Alert Service
Bulletin 777-27A0071, Revision 1; or make a reference to maintenance
review board (MRB) and maintenance planning document (MPD) item 27-460-
01, which is the item created in the MRB and MPD; or take into account
airplanes on which Service Bulletin 777-27A0071, Revision 1, has been
accomplished at the extended 16,000 flight cycle intervals.
    JAL states that paragraph (k) of the NPRM should be clarified to
include the extended interval of 16,000 flight cycles.
    We agree with the commenters that paragraph (k) of the AD should
provide the extended interval for the repetitive measurements so it
corresponds with the interval specified in paragraph (j) of the AD. We
have included that interval in paragraph (k) for clarification.
    Air France also asks that paragraph (k) of the NPRM include
terminating action. Air France states that paragraph (k) does not
specify that application of Alert Service Bulletin 777-27A0071,
Revision 1, is terminating action for the actions specified in
paragraphs (f), (g), (h), and (i) of the NPRM, for the associated
trailing edge flap support only. Air France adds that paragraph (k)
should correspond with paragraph (j) of the NPRM.
    We agree with Air France for the reasons provided, and we have
included the terminating action in paragraph (k) of the AD for
clarification.

Request To Change Compliance Times

    JAL asks that the compliance times specified in paragraph (h)(1)(i)
and (h)(3) of the NPRM be extended from 12

to 18 months after the first freeplay measurement of 0.020 inch to
0.100 inch inclusive, and that the repetitive freeplay inspection
(measurement) interval be reduced to 500 flight cycles. JAL provides
the following reasons for the request:
     All flap support mechanisms are modified at the same time
to avoid complexity and save time with the freeplay inspection
interval. There are many Model 777 airplanes planned for flap-related
modifications, but once the freeplay value exceeds 0.020 inch, the
actions must be done within 12 months. The 12-month compliance time
makes it difficult to schedule additional airplanes because of
inflexibility; however, 18 months provides more flexibility for
scheduling flap modifications. Reducing the freeplay inspection
interval to 500 flight cycles would support the compliance time
extension.
     Since the freeplay inspection procedure is not precise, it
frequently measures freeplay data containing human errors. If the
freeplay measurement value exceeds 0.020 inch the actions should be
done within 12 months. The teardown inspection must be done before
further flight if the freeplay value exceeds 0.020 inch. On the next
measurement the value can get within 0.020 inch, but the actions must
still be done within 12 months. This is not economical and JAL should
be allowed an additional 6-month buffer for flexibility.
     Since repetitive inspections are done at intervals of 500
flight cycles, JAL monitors the freeplay data for the joints. Due to
the freeplay (wear) value of all joints being monitored, the trend of
the freeplay value of specific joints is known. For Model 777 airplanes
utilized for domestic flight (high utilization in terms of flight
cycles), the 500 flight-cycle freeplay inspection is done within 3
months, and the normal 1,000 flight-cycle freeplay inspection is done
at around 6 months.
    In developing an appropriate compliance time for these actions, we
considered the urgency associated with the subject unsafe condition,
the availability of required parts, and the practical aspect of
accomplishing the required modification within a period of time that
corresponds to the normal scheduled maintenance for most affected
operators. Additionally, the compliance times were in part based on
observed wear properties of the applicable parts. We recognize that JAL
may have data to show that its wear rates are different than that used
in the manufacturer's analysis. If this is the case, we recommend that
JAL submit its data in the form of an alternative method of compliance
because JAL provides no technical justification for changing the
compliance times. According to the provisions of paragraph (n) of the
AD, we may approve requests to adjust the compliance time if the
request includes data that show that the new compliance time would
provide an acceptable level of safety. We have made no change to the AD
in this regard.

Conclusion

    We have carefully reviewed the available data, including the
comments received, and determined that air safety and the public
interest require adopting the AD with the changes described previously.
We have determined that these changes will neither increase the
economic burden on any operator nor increase the scope of the AD.

Costs of Compliance

    There are about 546 airplanes of the affected design in the
worldwide fleet. The following table provides the estimated costs for
U.S. operators to comply with this AD.

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                Number of
                                 Work      Average                     Cost per        U.S.-
           Action               hours     labor rate   Parts cost      airplane      registered     Fleet cost
                                           per hour                                  airplanes
----------------------------------------------------------------------------------------------------------------
Freeplay measurement........         28          $80            0  $2,240, per              145  $324,800, per
                                                                    cycle.                        cycle.
Lubrication.................          2           80            0  $160, per cycle          145  $23,200 per
                                                                                cycle.
Modification for flap               135           80      $58,521  $69,321........          145  $10,051,545.
 support No. 3 and 6.
----------------------------------------------------------------------------------------------------------------

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, Section 106, describes the
authority of the FAA Administrator. Subtitle VII, Aviation Programs,
describes in more detail the scope of the Agency's authority.
    We are issuing this rulemaking under the authority described in
Subtitle VII, Part A, Subpart III, Section 44701, ``General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.

Regulatory Findings

    We have determined that this AD will not have federalism
implications under Executive Order 13132. This AD will not have a
substantial direct effect on the States, on the relationship between
the national government and the States, or on the distribution of power
and responsibilities among the various levels of government.
    For the reasons discussed above, I certify that this AD:
    (1) Is not a ``significant regulatory action'' under Executive
Order 12866;
    (2) Is not a ``significant rule'' under DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979); and
    (3) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
    We prepared a regulatory evaluation of the estimated costs to
comply with this AD and placed it in the AD docket. See the ADDRESSES
section for a location to examine the regulatory evaluation.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.

Adoption of the Amendment

0
Accordingly, under the authority delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701.

Sec.  39.13  [Amended]

0
2. The Federal Aviation Administration (FAA) amends Sec.  39.13 by
adding the following new airworthiness directive (AD):

2007-23-11 Boeing: Amendment 39-15257. Docket No. FAA-2007-27619;
Directorate Identifier 2005-NM-164-AD.

Effective Date

    (a) This AD becomes effective December 20, 2007.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Boeing Model 777-200, -200LR, -300, and -
300ER series airplanes, certificated in any category; as identified
in Boeing Service Bulletin 777-27A0066, Revision 1, dated May 18,
2006.

Unsafe Condition

    (d) This AD results from reports of excessive wear of the pins,
bushings, and bearings, and corrosion at the joints of the outboard
trailing edge flap supports. We are issuing this AD to prevent wear
and corrosion at the flap support joints, which could result in loss
of the trailing edge flap and possible loss of control of the
airplane.

Compliance

    (e) You are responsible for having the actions required by this
AD performed within the compliance times specified, unless the
actions have already been done.

Initial Freeplay Measurement

    (f) At the applicable time in paragraph (f)(1) or (f)(2) of this
AD: Measure the freeplay of support joints A, B, C, and D of the
trailing edge flap supports, numbers 1 through 3 inclusive and 6
through 8 inclusive, and of joint B of the trailing edge flap
supports, numbers 4 and 5; in accordance with the Accomplishment
Instructions of Boeing Service Bulletin 777-27A0066, Revision 1,
dated May 18, 2006.
    (1) For airplanes that have accumulated 6,000 total flight
cycles or more on or before the effective date of this AD and on
which a teardown inspection has not been accomplished before the
effective date of this AD: At the earlier of the times in paragraph
(f)(1)(i) or (f)(1)(ii) of this AD.
    (i) Prior to the accumulation of 10,000 total flight cycles, or
within 9 months after the effective date of this AD, whichever
occurs later.
    (ii) Within 30 months after the effective date of this AD.
    (2) For airplanes that have accumulated fewer than 6,000 total
flight cycles on or before the effective date of this AD: At the
later of the times in paragraph (f)(2)(i) or (f)(2)(ii) of this AD.
    (i) Prior to the accumulation of 6,000 total flight cycles, or
within 120 months after the date of issuance of the original
standard airworthiness certificate or the date of issuance of the
original export certificate of airworthiness, whichever occurs
first.
    (ii) Within 30 months after the effective date of this AD.

Repetitive Intervals if the Freeplay Measurement is Less Than 0.020
Inch

    (g) If, during any freeplay measurement required by paragraph
(f), (g), or (h) of this AD, the freeplay measurement is less than
0.020 inch: Repeat the freeplay measurement required by paragraph
(f) of this AD at the applicable interval in paragraph (g)(1) or
(g)(2) of this AD. Accomplishing the actions specified in paragraph
(j) or (k) of this AD, as applicable, extends the intervals for the
repetitive measurements for the associated flap support only.
    (1) At intervals not to exceed 1,000 flight cycles.
    (2) At intervals not to exceed 6,000 flight cycles or 120
months, whichever occurs first, if a review of airplane maintenance
records can conclusively determine that the joints have been
lubricated with only BMS 3-33 grease at the earlier of intervals not
to exceed 1,000 flight cycles or 240 days since the last support
teardown inspection, or since the date of issuance of the original
standard airworthiness certificate or the date of issuance of the
original export certificate of airworthiness.

Related Investigative and Corrective Actions, and Repetitive Intervals
if the Freeplay Measurement is 0.020 Inch or Greater

    (h) If, during any freeplay measurement required by paragraph
(f), (g), or (h) of this AD, the freeplay measurement is 0.020 inch
or greater: Do the applicable action in paragraph (h)(1), (h)(2), or
(h)(3) of this AD. Accomplishing the actions specified in paragraph
(j) or (k) of this AD, as applicable, extends the intervals for
repetitive measurements for the associated flap support only. Do all
actions in accordance with the Accomplishment Instructions and note
(e) of Table 1 in paragraph 1.E., ``Compliance.'' of Boeing Service
Bulletin 777-27A0066, Revision 1, dated May 18, 2006.
    (1) For airplanes that have accumulated 6,000 total flight
cycles or more as of the effective date of this AD, and for which
the freeplay measurement is 0.020 inch to 0.100 inch inclusive:
Repeat the freeplay measurement required by paragraph (f) of this AD
thereafter at intervals not to exceed 500 flight cycles until the
support teardown inspection in paragraph (h)(1)(i) or (h)(1)(ii) of
this AD is done.
    (i) Within 12 months after the first freeplay measurement of
0.020 inch to 0.100 inch inclusive, do the applicable related
investigative and corrective actions specified in the service
bulletin as the ``Support Teardown Inspection,'' and repeat the
freeplay measurement required by paragraph (f) of this AD thereafter
at intervals not to exceed 6,000 flight cycles or 120 months,
whichever occurs first.
    (ii) Before further flight after the first freeplay measurement
of 0.020 inch to 0.100 inch inclusive, do the applicable related
investigative and corrective actions specified in the service
bulletin as the ``Temporary Return to Service Inspection'' and,
within 24 months after the first freeplay measurement of 0.020 inch
to 0.100 inch inclusive, do the applicable related investigative and
corrective actions specified in the service bulletin as the
``Support Teardown Inspection.'' Repeat the freeplay measurement
required by paragraph (f) of this AD thereafter at intervals not to
exceed 6,000 flight cycles, or 120 months, whichever occurs first.
    (2) For airplanes that have accumulated 6,000 total flight
cycles or more as of the effective date of this AD, and the freeplay
measurement is greater than 0.100 inch: Do the action in paragraph
(h)(2)(i) or (h)(2)(ii) of this AD.
    (i) Before further flight after the first freeplay measurement
of greater than 0.100 inch, do the applicable related investigative
and corrective actions specified in the service bulletin as the
``Support Teardown Inspection.'' Repeat the freeplay measurement
required by paragraph (f) of this AD thereafter at intervals not to
exceed 6,000 flight cycles or 120 months, whichever occurs first.
    (ii) Before further flight after the first freeplay measurement
of greater than 0.100 inch, do applicable related investigative and
corrective actions in the ``Temporary Return to Service
Inspection,'' and within 6 months after the first freeplay
measurement of greater than 0.100 inch, do the applicable related
investigative and corrective actions in the ``Support Teardown
Inspection.'' Repeat the freeplay measurement required by paragraph
(f) of this AD thereafter at intervals not to exceed 6,000 flight
cycles or 120 months, whichever occurs first.
    (3) For airplanes that have accumulated fewer than 6,000 total
flight cycles as of the effective date of this AD: Before further
flight after the first freeplay measurement of 0.020 inch or
greater, do the related investigative and corrective actions
specified in the service bulletin as the ``Support Teardown
Inspection.'' Repeat the freeplay measurement required by paragraph
(f) of this AD thereafter at intervals not to exceed 6,000 flight
cycles or 120 months, whichever occurs first.

Repetitive Lubrications

    (i) Within 12 months after the effective date of this AD:
Lubricate the joints of the trailing edge flap supports using BMS 3-
33 grease. Repeat the lubrication thereafter at intervals not to
exceed 1,000 flight cycles, or 240 days, whichever occurs first. Do
all actions in accordance with the Accomplishment Instructions, and
note (d) of Table 1 in paragraph 1.E., ``Compliance,'' of Boeing
Service Bulletin 777-27A0066, Revision 1, dated May 18, 2006.

Modification/Repetitive Freeplay Measurements for Flap Support Numbers
3 and 6

    (j) Before the accumulation of 23,000 total flight cycles or
within 24 months after the effective date of this AD, whichever is
later: Replace the pins, ball sets, and bushings on

the joints of the trailing edge flap at support numbers 3 and 6 with
new, improved components by doing all the applicable actions,
including all applicable corrective actions, in accordance with the
Accomplishment Instructions of Boeing Alert Service Bulletin 777-
27A0071, Revision 1, dated October 16, 2006. Before further flight
after doing the actions, do a detailed inspection of the components
that interface with the flap support pins for discrepancies
(corrosion, damage, or excessive wear), and a general visual
inspection for any blocked lubrication paths; and do all applicable
corrective actions. Repeat the freeplay measurements for the
associated trailing edge flap support at intervals not to exceed
16,000 flight cycles in accordance with the Accomplishment
Instructions of Boeing Alert Service Bulletin 777-27A0071, Revision
1, dated October 16, 2006. Accomplishing the actions in this
paragraph constitutes terminating action for the actions specified
in paragraphs (f), (g), (h), and (i) of this AD, for the associated
trailing edge flap support only.

Optional Modification for Flap Support Numbers 1, 2, 4, 5, 7, and 8

    (k) Accomplishing the actions specified in paragraph (j) of this
AD at support numbers 1, 2, 4, 5, 7, and 8, extends the repetitive
intervals for the freeplay measurements required by paragraph (g) of
this AD to an interval not to exceed 16,000 flight cycles for the
associated trailing edge flap support. Accomplishing the actions in
this paragraph constitutes terminating action for the actions
specified in paragraphs (f), (g), (h), and (i) of this AD, for the
associated trailing edge flap support only.

Revise Maintenance Planning Data (MPD) Document

    (l) Within 12 months after the effective date of this AD: Revise
the maintenance practices for performing periodic inspections and
maintenance of the support joints of the trailing edge flap for the
maintenance inspection program of the Boeing 777 MPD Document by
doing the actions specified in paragraphs 1 and 3 only of Part 7 of
the Accomplishment Instructions of Boeing Alert Service Bulletin
777-27A0071, Revision 1, dated October 16, 2006.

Actions Accomplished Previously

    (m) Actions done before the effective date of this AD in
accordance with Boeing Alert Service Bulletin 777-27A0066, dated
July 28, 2005, are acceptable for compliance with the actions
specified in paragraphs (f), (g), (h), and (i) of this AD, as
applicable. Actions done before the effective date of this AD in
accordance with Boeing Alert Service Bulletin 777-27A0071, dated
March 30, 2006, are acceptable for compliance with the actions
specified in paragraphs (j), (k), and (l) of this AD, as applicable.

Alternative Methods of Compliance (AMOCs)

    (n)(1) The Manager, Seattle Aircraft Certification Office (ACO),
FAA, has the authority to approve AMOCs for this AD, if requested in
accordance with the procedures found in 14 CFR 39.19.
    (2) To request a different method of compliance or a different
compliance time for this AD, follow the procedures in 14 CFR 39.19.
Before using any approved AMOC on any airplane to which the AMOC
applies, notify your appropriate principal inspector (PI) in the FAA
Flight Standards District Office (FSDO), or lacking a PI, your local
FSDO.
    (3) An AMOC that provides an acceptable level of safety may be
used for any repair required by this AD, if it is approved by an
Authorized Representative for the Boeing Commercial Airplanes
Delegation Option Authorization Organization who has been authorized
by the Manager, Seattle ACO, to make those findings. For a repair
method to be approved, the repair must meet the certification basis
of the airplane, and the approval must specifically refer to this
AD.

Material Incorporated by Reference

    (o) You must use Boeing Service Bulletin 777-27A0066, Revision
1, dated May 18, 2006; and Boeing Alert Service Bulletin 777-
27A0071, Revision 1, dated October 16, 2006; as applicable, to
perform the actions that are required by this AD, unless the AD
specifies otherwise. The Director of the Federal Register approved
the incorporation by reference of these documents in accordance with
5 U.S.C. 552(a) and 1 CFR part 51. Contact Boeing Commercial
Airplanes, P.O. Box 3707, Seattle, Washington 98124-2207, for a copy
of this service information. You may review copies at the FAA,
Transport Airplane Directorate, 1601 Lind Avenue SW., Renton,
Washington; or at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, call<PHONE_NUMBER>, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html
.

    Issued in Renton, Washington, on November 2, 2007.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E7-21999 Filed 11-14-07; 8:45 am]

BILLING CODE 4910-13-P