[Federal Register Volume 88, Number 72 (Friday, April 14, 2023)]
[Rules and Regulations]
[Pages 22895-22900]
[FR Doc No: 2023-08027]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2023-0925; Project Identifier AD-2023-00255-T;
Amendment 39-22411; AD 2023-07-09]
RIN 2120-AA64

Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; request for comments.

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SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2022-27-
07, which applied to certain The Boeing Company Model 747-400 and 747-8
series airplanes. AD 2022-27-07 required inspecting for wear of the
transfer pump housing inlet check valves and transfer pump motor
impeller inlet adapters for the horizontal stabilizer fuel tank and
doing corrective actions, if necessary. This AD was prompted by the
discovery that certain airplanes were incorrectly included in the
applicability of AD 2022-27-07. This AD continues to require inspecting
for wear of the transfer pump housing inlet check valves and transfer
pump motor impeller inlet adapters for the horizontal stabilizer fuel
tank and doing corrective actions, if necessary. This AD also removes
certain airplanes from the applicability, redefines the definition of
an ``activated'' horizontal stabilizer fuel tank, and limits the
installation of affected parts. The FAA is issuing this AD to address
the unsafe condition on these products.

DATES: This AD is effective May 1, 2023.
    The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of January 13,
2023 (87 FR 80028, December 29, 2022).
    The FAA must receive comments on this AD by May 30, 2023.

ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to regulations.gov. Follow
the instructions for submitting comments.
     Fax:<PHONE_NUMBER>.
     Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590.
     Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    AD Docket: You may examine the AD docket at regulations.gov by
searching for and locating Docket No. FAA-2023-0925; or in person at
Docket Operations between 9 a.m. and 5 p.m., Monday through Friday,
except Federal holidays. The AD docket contains this final rule, any
comments received, and other information. The street address for Docket
Operations is listed above.
    Material Incorporated by Reference:

     For service information incorporated by reference in this
AD, contact Boeing Commercial Airplanes, Attention: Contractual & Data
Services (C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA
90740-5600; telephone<PHONE_NUMBER>; website myboeingfleet.com.
     You may view this referenced service information at the
FAA, Airworthiness Products Section, Operational Safety Branch, 2200
South 216th St., Des Moines, WA. For information on the availability of
this material at the FAA, call<PHONE_NUMBER>. It is also available at
regulations.gov by searching for and locating Docket No. FAA-2023-0925.

FOR FURTHER INFORMATION CONTACT: Samuel Dorsey, Aerospace Engineer,
Propulsion Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des
Moines, WA 98198; phone:<PHONE_NUMBER>; email: [email protected].

SUPPLEMENTARY INFORMATION:

Comments Invited

    The FAA invites you to send any written data, views, or arguments
about this final rule. Send your comments to an address listed under
ADDRESSES. Include ``Docket No. FAA-2023-0925 and Project Identifier
AD-2023-00255-T'' at the beginning of your comments. The most helpful
comments reference a specific portion of the final rule, explain the
reason for any recommended change, and include supporting data. The FAA
will consider all comments received by the closing date and may amend
this final rule because of those comments.
    Except for Confidential Business Information (CBI) as described in
the following paragraph, and other information as described in 14 CFR
11.35, the FAA will post all comments received, without change, to
regulations.gov, including any personal information you provide. The
agency will also post a report summarizing each substantive verbal
contact received about this final rule.

Confidential Business Information

    CBI is commercial or financial information that is both customarily
and actually treated as private by its owner. Under the Freedom of
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public
disclosure. If your comments responsive to this AD contain commercial
or financial information that is customarily treated as private, that
you actually treat as private, and that is relevant or responsive to
this AD, it is important that you clearly designate the submitted
comments as CBI. Please mark each page of your submission containing
CBI as ``PROPIN.'' The FAA will treat such marked submissions as
confidential under the FOIA, and they will not be placed in the public
docket of this AD. Submissions containing CBI should be sent to Samuel
Dorsey, Aerospace Engineer, Propulsion Section, FAA, Seattle ACO
Branch, 2200 South 216th St., Des Moines, WA 98198; phone: 206-231-
3415; email: [email protected]. Any commentary that the FAA
receives that is not specifically designated as CBI will be placed in
the public docket for this rulemaking.

Background

    The FAA issued AD 2022-27-07, Amendment 39-22292 (87 FR 80028,
December 29, 2022) (AD 2022-27-07), for certain The Boeing Company
Model 747-400 and 747-8 series airplanes. AD 2022-27-07 required
inspecting for wear of the transfer pump housing inlet check valves and
transfer pump motor impeller inlet adapters for the horizontal
stabilizer fuel tank and doing corrective actions, if necessary. AD
2022-27-07 also limited the installation of affected parts. AD 2022-27-
07 was prompted by reports of wear-through of the transfer pump motor
impeller inlet adapter of a transfer pump for the horizontal stabilizer
fuel tank caused by contact between the transfer pump housing inlet
check valve and the transfer pump motor impeller inlet adapter. The FAA
issued AD 2022-27-07 to address the development of an ignition source
within the horizontal stabilizer fuel tank resulting from wear to the
transfer pump housing inlet check valves and transfer pump motor
impeller inlet adapters of the horizontal stabilizer fuel tank. This
condition, in combination with flammable fuel vapors, could result in a
fuel tank explosion and consequent loss of the airplane.

Actions Since AD 2022-27-07 Was Issued

    Since the FAA issued AD 2022-27-07, the agency received comments
from Boeing and Delta Air Lines (Delta) identifying errors affecting
the applicability of AD 2022-27-02. These errors are discussed in
detail along with additional issues in the following section.

Request To Clarify Component Descriptions in AD 2022-27-07

    Boeing requested that the FAA clarify the component descriptions
throughout AD 2022-27-07. Boeing explained that the inlet check valve
is part of the transfer pump housing assembly, while the inlet adapter
is part of the transfer pump motor impeller assembly. When referring to
the inlet check valve, Boeing suggested consistent use of ``transfer
pump housing inlet check valve(s).'' And, when referring to the inlet
adapter, Boeing suggested consistent use of ``transfer pump motor
impeller inlet adapter.''
    The FAA agrees and has updated this AD accordingly.

Request To Exclude Unaffected Parts From the Applicability of AD 2022-
27-07

    Boeing requested that AD 2022-27-07 be revised to exclude certain
parts that are not affected by the unsafe condition addressed in that
AD. Boeing pointed out that the standard Model 747-400 and -8 airplanes
utilize Crane Aerospace Hydro-Aire transfer pump housings and transfer
pump motor impellers having part numbers (P/Ns) 60-703200-x and 60-
72101-x respectively, where x represents all dash numbers, and those
are the parts that are subject to the unsafe condition. Clarifying,
Boeing stated that it received FAA approval in 2003 to use alternate
FR-HiTemp Limited fuel pumps and housings as an option on Model 747-400
airplanes. Boeing further explained that incorporation of the approved
alternate FR-HiTemp Limited part numbers was approved by the FAA as an
alternative method of compliance for AD 2001-21-07, Amendment 39-12478
(66 FR 54652, October 30, 2001), against the Crane Aerospace Hydro-Aire
transfer pump housings and transfer pump motor impellers. Boeing
asserted that the associated certification system safety assessment and
design data reviews for the alternate part numbers concluded that the
unsafe condition cited in AD 2022-27-07 does not exist because the
interface designs are significantly different from the Crane Aerospace
Hydro-Aire design, such that the same unsafe wear condition cannot
develop.
    The FAA agrees for the reasons provided by Boeing. Therefore, the
applicability of this AD has been revised to specify that this AD
applies to airplanes equipped with an activated horizontal stabilizer
fuel tank with Crane Aerospace Hydro-Aire horizontal stabilizer fuel
transfer pump housings and transfer pump motor impellers. Therefore,
airplanes without Crane Aerospace Hydro-Aire horizontal stabilizer fuel
transfer pump housings and transfer pump motor impellers are not
subject to this AD.

Request To Exclude Certain Airplanes From the Applicability of AD 2022-
27-07

    Boeing requested that airplanes delivered with no horizontal
stabilizer fuel tank installed in production and airplanes with
provisioned, but non-functional horizontal stabilizer fuel tanks be
removed from the applicability of AD 2022-27-07. Boeing pointed out
that the definition of an ``activated'' tank in paragraph (g)(3) of AD
2022-27-07 is one that is ``. . . considered to be ``activated'' if it
is not deactivated by an approved alteration,'' which might
inadvertently affect airplanes delivered with a horizontal stabilizer
fuel tank in a permanent non-functional state, as well as airplanes
provisioned for future activation to a fully functional state at the
operator's discretion.
    Boeing explained that Model 747 airplanes were delivered in three
primary certified configurations: passenger configurations with no
horizontal stabilizer fuel tank installed in production, passenger
configurations with a fully functional horizontal stabilizer fuel tank
installed in production by operator selection of this offered option,
and all freighter configurations with no horizontal stabilizer fuel
tank installed in production. Further, Boeing explained that some
passenger airplanes were delivered with various configurations of
exercised customer options for the horizontal stabilizer fuel tank, and
all of these options were with non-functional horizontal stabilizer
fuel tanks, but with provisions to support later activation to fully
functional configurations via Boeing service bulletins at the
operator's discretion. The various provisional configurations Boeing
described ranged from partial installation of only horizontal
stabilizer fuel tank fuel transfer line shrouds to isolation of the
horizontal stabilizer fuel tank from its dedicated refuel/defuel/
transfer lines at both the center wing fuel tank and the horizontal
stabilizer fuel tank interfaces by disconnecting and capping of same,
de-energizing of fuel pump power circuits, among other actions required
for certification as a non-functional horizontal stabilizer fuel tank.
    In all of the provisioned, non-functional configurations, Boeing
asserted that the fuel and fuel vapor is prevented from entering the
horizontal stabilizer fuel tank, as it is isolated from any fuel supply
or communication with non-horizontal stabilizer fuel tanks, nor was any
fuel or fuel vapors introduced during production. Therefore, Boeing
argued that airplanes in configurations with no horizontal stabilizer
fuel tanks installed in production and those with provisioned, but non-
functional horizontal stabilizer fuel tanks have effectively eliminated
the unsafe condition addressed by AD 2022-27-07 due to the elimination
of the potential for flammable fuel vapor with the horizontal
stabilizer fuel tank. However, Boeing points out that these airplane
configurations, by their nature, do not have associated instructions
for an ``approved alteration'' to deactivate the horizontal stabilizer
fuel tank, but are still subject to AD 2022-27-07, based on the
applicability and definition of an ``activated'' horizontal stabilizer
fuel tank.
    The FAA agrees that airplanes without a horizontal stabilizer fuel
tank installed in production are not affected by this AD for the
reasons provided by Boeing. The applicability of this AD has been
revised to specify that this AD does not apply to airplanes with
horizontal stabilizer fuel tanks that cannot be fueled without further
modification (i.e., the tanks are sealed and disconnected from the
airplane fuel system).
    In addition, the definition of ``activated'' specified in paragraph
(g)(3) of AD 2022-27-07 has been revised in this AD. For the purposes
of this AD, a horizontal stabilizer tank is considered to be
``activated'' if it is not deactivated in production or deactivated by
an approved alteration.
    The FAA does not agree to specifically remove airplanes with
provisioned, but non-functional horizontal stabilizer fuel tanks from
the applicability of this AD. Since the horizontal stabilizer tank,
unless deactivated as specified in paragraph (g)(3) of this AD, is
provisioned to be activated at a future date, the FAA has determined
that those airplanes should be subject to this AD. However, no action
is required by this AD for those airplanes until the horizontal
stabilizer tank is activated.

Request To Clarify Publication Date of Service Information Required by
AD 2022-27-07

    Delta requested that the FAA clarify the publication date of Boeing
Multiple Operator Message MOM-MOM-22-0549-01B(R1). Delta pointed out
that the message date is listed as both November 29, 2022 (U.S. Pacific
Standard Time (PST)) and November 30, 2022 (Greenwich Mean Time (GMT)),
while the message sent date is identified as November 29, 2022.
Therefore, Delta suggested that the AD should either be clear that the
date used is the date the message was sent or that the dates provided
in the message date field of the message are in both PST and GMT.
    The FAA agrees to clarify. The message was published at 1615 PST on
November 29, 2022, which was 0015 GMT on November 30, 2022. The message
was then sent to operators at 0017 GMT on November 30, 2022, which was
1617 PST on November 29, 2022 (not stated on the message). Boeing
Multiple Operator Message MOM-MOM-22-0549-01B(R1), dated November 29,
2022, was published in the U.S. time zone using PST; therefore, that is
the date the FAA AD referenced. No change to this AD has been made in
this regard.

Request To Add Specific Part Numbers in Parts Installation Limitation
of AD 2022-27-07

    Delta requested that either the parts installation limitation in
paragraph (k) of AD 2022-27-07 be revised to include specific part
numbers for the affected parts or that it direct operators to the
referenced service information for that information. Delta asserted
that the lack of reference to specific affected part numbers may be
interpreted to mean any and all transfer pump motor impeller inlet
assemblies or transfer pump housing inlet check valves (or assembly
containing either), even though the referenced service information is
limited to specific Crane Aerospace Hydro-Aire pumps and transfer pump
housing inlet check valves.
    The FAA partially agrees and has revised the parts installation
limitation specified in paragraph (k) of this AD. Paragraph (k) of this
AD limits the affected parts to Crane Aerospace Hydro-Aire horizontal
stabilizer fuel transfer pump housings and transfer pump motor
impellers. Furthermore, as previously described, in order to remove the
airplanes not affected by the unsafe condition, the FAA has revised the
applicability of this AD by specifying the AD applies to airplanes
equipped with Crane Aerospace Hydro-Aire horizontal stabilizer fuel
transfer pump housings and transfer pump motor impellers.

FAA's Determination

    The FAA is issuing this AD because the agency has determined the
unsafe condition described previously is likely to exist or develop in
other products of the same type design.

Related Service Information Under 1 CFR Part 51

    This AD requires Boeing Multiple Operator Message MOM-MOM-22-0549-
01B(R1), dated November 29,

2022, which the Director of the Federal Register approved for
incorporation by reference as of January 13, 2023 (87 FR 80028,
December 29, 2022). This service information is reasonably available
because the interested parties have access to it through their normal
course of business or by the means identified in the ADDRESSES section.

AD Requirements

    This AD requires accomplishing the actions specified in the service
information already described. This AD also limits the installation of
affected parts.

Interim Action

    This AD is considered to be interim action. The inspection reports
that are required by this AD will enable the manufacturer to obtain
better insight into the nature, cause, and extent of the wear-through,
and eventually to develop final action to address the unsafe condition.
Further, the main and center wing tanks utilize the same pump design
but are currently not subject to the same unsafe condition due to the
shutoff logic of the transfer pumps. However, if that should change or
once final action has been identified, the FAA might consider further
rulemaking.

Justification for Immediate Adoption and Determination of the Effective
Date

    Section 553(b)(3)(B) of the Administrative Procedure Act (APA) (5
U.S.C. 551 et seq.) authorizes agencies to dispense with notice and
comment procedures for rules when the agency, for ``good cause,'' finds
that those procedures are ``impracticable, unnecessary, or contrary to
the public interest.'' Under this section, an agency, upon finding good
cause, may issue a final rule without providing notice and seeking
comment prior to issuance. Further, section 553(d) of the APA
authorizes agencies to make rules effective in less than thirty days,
upon a finding of good cause.
    An unsafe condition exists that requires the immediate adoption of
this AD without providing an opportunity for public comments prior to
adoption. The FAA has found that the risk to the flying public
justifies forgoing notice and comment prior to adoption of this rule
because the FAA has previously provided notice and comment on this
unsafe condition and has dispositioned those comments herein. The FAA
is redefining the applicable airplanes by revising the applicability in
paragraph (c) and definition in paragraph (g)(3) of this AD. However,
this change does not affect a new population of airplanes, but rather,
this AD removes several airplanes from the applicability of this AD.
Accordingly, notice and opportunity for prior public comment is
unnecessary pursuant to 5 U.S.C. 553(b)(3)(B).
    In addition, the FAA finds that good cause exists pursuant to 5
U.S.C. 553(d) for making this amendment effective in less than 30 days,
for the same reasons the FAA found good cause to forgo notice and
comment.

Regulatory Flexibility Act

    The requirements of the Regulatory Flexibility Act (RFA) do not
apply when an agency finds good cause pursuant to 5 U.S.C. 553 to adopt
a rule without prior notice and comment. Because the FAA has determined
that it has good cause to adopt this rule without notice and comment,
RFA analysis is not required.

Costs of Compliance

    The FAA estimates that this AD affects 28 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:

                                                Estimated Costs *
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                                                                                Cost per      Cost on U.S.
                Action                         Labor cost           Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
Inspections of transfer pump motor      12 work-hours x $85 per               $0          $1,020         $28,560
 impeller inlet adapter and transfer     hour = $1,020.
 pump housing inlet check valves (left
 and right transfer pumps).
Reporting.............................  1 work-hour x $85 per                  0              85           2,380
                                         hour = $85.
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* While this AD removes certain airplanes from the applicability, the cost estimates in the previous AD did not
  include airplanes delivered with provisions for but inoperable horizontal stabilizer fuel tanks. Therefore,
  the cost estimate in this AD has not changed in that regard.

    The FAA estimates the following costs to do any necessary
replacements that would be required based on the results of the
inspection. The FAA has no way of determining the number of aircraft
that might need these replacements:

                                               On-Condition Costs
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                                                                                Cost per
                    Action                                 Labor cost               Parts cost        product
----------------------------------------------------------------------------------------------------------------
Replace transfer pump motor impeller inlet      4 work-hours x $85 per hour =             $1,000          $1,340
 adapter.                                        $340.
Replace transfer pump housing inlet check       17 work-hours x $85 per hour =          * 20,000          21,445
 valve.                                          $1,445.
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* Boeing has indicated that the transfer pump housing inlet check valve is not currently available as a
  standalone part; this cost is for the pump housing, which contains the transfer pump housing inlet check
  valve. Boeing has indicated that it is working with the part supplier to make the transfer pump housing inlet
  check valve available as a standalone part.

Paperwork Reduction Act

    A federal agency may not conduct or sponsor, and a person is not
required to respond to, nor shall a person be subject to a penalty for
failure to comply with a collection of information subject to the
requirements of the Paperwork Reduction Act unless that collection of
information displays a currently valid OMB Control Number. The OMB
Control Number for this information collection is 2120-0056. Public
reporting for this collection of information is estimated to be
approximately 1 hour per response, including the time for reviewing
instructions, searching existing data

sources, gathering and maintaining the data needed, completing and
reviewing the collection of information. All responses to this
collection of information are mandatory. Send comments regarding this
burden estimate or any other aspect of this collection of information,
including suggestions for reducing this burden to: Information
Collection Clearance Officer, Federal Aviation Administration, 10101
Hillwood Parkway, Fort Worth, TX 76177-1524.

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.
    The FAA is 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

    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, and
    (2) Will not affect intrastate aviation in Alaska.

List of Subjects in 14 CFR Part 39

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

The Amendment

    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 FAA amends Sec.  39.13 by:
0
a. Removing Airworthiness Directive (AD) 2022-27-07, Amendment 39-22292
(87 FR 80028, December 29, 2022); and
0
b. Adding the following new AD:

2023-07-09 The Boeing Company: Amendment 39-22411; Docket No. FAA-
2023-0925; Project Identifier AD-2023-00255-T.

(a) Effective Date

    This airworthiness directive (AD) is effective May 1, 2023.

(b) Affected ADs

    This AD replaces AD 2022-27-07, Amendment 39-22292 (87 FR 80028,
December 29, 2022) (AD 2022-27-07).

(c) Applicability

    This AD applies to The Boeing Company Model 747-400 and 747-8
series airplanes, certificated in any category, equipped with an
activated horizontal stabilizer fuel tank with Crane Aerospace
Hydro-Aire horizontal stabilizer fuel transfer pump housings and
transfer pump motor impellers.

(d) Subject

    Air Transport Association (ATA) of America Code 28, Fuel.

(e) Unsafe Condition

    This AD was prompted by reports of wear-through of the transfer
pump motor impeller inlet adapter of the horizontal stabilizer fuel
tank transfer pump caused by contact between the transfer pump
housing inlet check valve and the inlet adapter. The FAA is issuing
this AD to address the development of an ignition source within the
horizontal stabilizer fuel tank resulting from wear to the transfer
pump housing inlet check valves and transfer pump motor impeller
inlet adapters of the horizontal stabilizer fuel tank. This
condition, in combination with flammable fuel vapors, could result
in a fuel tank explosion and consequent loss of the airplane.

(f) Compliance

    Comply with this AD within the compliance times specified,
unless already done.

(g) Retained Definitions, With a Revised Definition

    This paragraph restates the definitions specified in paragraphs
(g)(1) and (2) of AD 2022-27-07, with a revised definition.
    (1) A ``serviceable'' transfer pump motor impeller inlet adapter
is an inlet adapter of the motor impeller assembly for which any
missing material does not exceed 0.20 inch in the pump axial
direction.
    (2) A ``serviceable'' transfer pump housing inlet check valve is
an inlet check valve for which the hinge pin protrudes past the
flapper arm on both sides and there is no metal disk gouging,
missing material, corrosion, burrs, or raised material. Minor
surface scratches, defects, or appearances of surface wear are
acceptable.
    (3) A horizontal stabilizer tank is considered to be
``activated'' if it is not deactivated in production or deactivated
by an approved alteration.

(h) Retained Inspection and Corrective Action: Transfer Pump Housing
Inlet Check Valve, With No Changes

    This paragraph restates the requirements of paragraph (h) of AD
2022-27-07, with no changes. Within 90 days after January 13, 2023
(the effective date of AD 2022-27-07): Do a detailed visual
inspection of the transfer pump housing inlet check valve in the
left and right transfer pump housing for hinge pin protrusion,
gouging, missing material, corrosion, burrs, and raised material, in
accordance with paragraph C., Work Instructions, Attachment A,
Boeing Multiple Operator Message MOM-MOM-22-0549-01B(R1), dated
November 29, 2022.
    (1) Condition 1: If the hinge pin does not protrude past the
flapper arm on one side, or if any gouging, missing material,
corrosion, burrs, or raised material is found on the transfer pump
housing inlet check valve, do the actions required by paragraphs
(h)(1)(i) and (ii) of this AD.
    (i) Report inspection findings in accordance with paragraph (j)
of this AD.
    (ii) Prior to further flight, replace the transfer pump housing
inlet check valve or transfer pump housing with a serviceable
transfer pump housing inlet check valve or transfer pump housing
containing a serviceable transfer pump housing inlet check valve, in
accordance with paragraph C., Work Instructions, Attachment A,
Boeing Multiple Operator Message MOM-MOM-22-0549-01B(R1), dated
November 29, 2022.
    (2) Condition 2: If the hinge pin does protrude past the flapper
arm on both sides, and no gouging, missing material, corrosion,
burrs, or raised material is found, report inspection findings in
accordance with paragraph (j) of this AD.

(i) Retained Inspection and Corrective Action: Transfer Pump Motor
Impeller Inlet Adapter, With No Changes

    This paragraph restates the requirements of paragraph (i) of AD
2022-27-07, with no changes. Within 90 days after January 13, 2023
(the effective date of AD 2022-27-07): Do a detailed visual
inspection of the transfer pump motor impeller inlet adapter for
wear (missing material), in accordance with paragraph D., Work
Instructions, Attachment A, Boeing Multiple Operator Message MOM-
MOM-22-0549-01B(R1), dated November 29, 2022.
    (1) Condition 1: If any wear is found that is 0.20 inch or less,
report inspection findings in accordance with paragraph (j) of this
AD.
    (2) Condition 2: If any wear is found that is greater than 0.20
inch, do the actions required by paragraphs (i)(2)(i) and (ii) of
this AD.
    (i) Report inspection findings in accordance with paragraph (j)
of this AD.

    (ii) Before further flight, replace the transfer pump motor
impeller with a transfer pump motor impeller having a serviceable
inlet adapter, in accordance with paragraph D., Work Instructions,
Attachment A, Boeing Multiple Operator Message MOM-MOM-22-0549-
01B(R1), dated November 29, 2022.

(j) Retained Reporting Inspection Results, With No Changes

    This paragraph restates the requirements of paragraph (j) of AD
2022-27-07, with no changes. At the applicable time specified in
paragraph (j)(1) or (2) of this AD, submit a report of all findings
of the inspections required by paragraphs (h) and (i) of this AD, in
accordance with paragraph G. and Appendix A, Attachment A, Boeing
Multiple Operator Message MOM-MOM-22-0549-01B(R1), dated November
29, 2022.
    (1) If the inspection was done on or after January 13, 2023 (the
effective date of AD 2022-27-07): Submit the report within 30 days
after the inspection.
    (2) If the inspection was done before January 13, 2023 (the
effective date of AD 2022-27-07): Submit the report within 30 days
after January 13, 2023.

(k) Retained Parts Installation Limitation, With Revised Affected Parts

    This paragraph restates the requirements of paragraph (k) of AD
2022-27-07, with revised affected parts. As of January 13, 2023 (the
effective date of AD 2022-27-07), no person may install, on any
airplane, a Crane Aerospace Hydro-Aire horizontal stabilizer fuel
transfer pump housing or transfer pump motor impeller, unless the
transfer pump motor impeller inlet adaptor and transfer pump housing
inlet check valve have been inspected as specified in paragraph (h)
or (i) of this AD, as applicable, and been determined to be a
serviceable part as defined in paragraph (g)(1) or (2) of this AD.

(l) Retained Credit for Previous Actions, With No Changes

    This paragraph restates the provisions of paragraph (l) of AD
2022-27-07, with no changes. This paragraph provides credit for
actions required by paragraphs (h) and (i) of this AD, if those
actions were performed before January 13, 2023 (the effective date
of AD 2022-27-07) using Boeing Multiple Operator Message MOM-MOM-22-
0549-01B, dated November 21, 2022.

(m) Special Flight Permit

    Special flight permits may be issued in accordance with 14 CFR
21.197 and 21.199 to operate the airplane to a location where the
actions required by this AD can be performed, provided the
horizontal stabilizer fuel tank is defueled and both transfer pump
circuit breakers are locked in the ``open'' position.

(n) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Seattle ACO Branch, FAA, has the authority to
approve AMOCs for this AD, if requested using the procedures found
in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request
to your principal inspector or responsible Flight Standards Office,
as appropriate. If sending information directly to the manager of
the certification office, send it to the attention of the person
identified in paragraph (o)(1) of this AD. Information may be
emailed to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the responsible Flight Standards Office.
    (3) An AMOC that provides an acceptable level of safety may be
used for any repair, modification, or alteration required by this AD
if it is approved by The Boeing Company Organization Designation
Authorization (ODA) that has been authorized by the Manager, Seattle
ACO Branch, FAA, to make those findings. To be approved, the repair
method, modification deviation, or alteration deviation must meet
the certification basis of the airplane, and the approval must
specifically refer to this AD.

(o) Related Information

    (1) For more information about this AD, contact Samuel Dorsey,
Aerospace Engineer, Propulsion Section, FAA, Seattle ACO Branch,
2200 South 216th St., Des Moines, WA 98198; phone:<PHONE_NUMBER>;
email: [email protected].
    (2) Service information identified in this AD that is not
incorporated by reference is available at the addresses specified in
paragraphs (p)(4) and (5) of this AD.

(p) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do
the actions required by this AD, unless this AD specifies otherwise.
    (3) The following service information was approved for IBR on
January 13, 2023 (87 FR 80028, December 29, 2022).
    (i) Boeing Multiple Operator Message MOM-MOM-22-0549-01B(R1),
dated November 29, 2022.
    (ii) [Reserved]
    (4) For Boeing service information identified in this AD,
contact Boeing Commercial Airplanes, Attention: Contractual & Data
Services (C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA
90740-5600; telephone<PHONE_NUMBER>; website myboeingfleet.com.
    (5) You may view this service information at the FAA,
Airworthiness Products Section, Operational Safety Branch, 2200
South 216th St., Des Moines, WA. For information on the availability
of this material at the FAA, call<PHONE_NUMBER>.
    (6) You may view this service information that is incorporated
by reference at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, email [email protected], or go to: www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued on April 8, 2023.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2023-08027 Filed 4-12-23; 4:15 pm]
BILLING CODE 4910-13-P


[Federal Register: March 29, 2007 (Volume 72, Number 60)]
[Notices]
[Page 14800]
[DOCID:fr29mr07-81]

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

DEPARTMENT OF ENERGY

Federal Energy Regulatory Commission

Notice of Intent To File License Application, Filing of Pre-
Application Document, and Approval of Use of the Traditional Licensing
Process

March 23, 2007.
    a. Type of Filing: Notice of Intent to File License Application and
Request to Use the Traditional Licensing Process.
    b. Project No.: 12771-000.
    c. Dated Filed: February 5, 2007.
    d. Submitted By: Great Bear Hydropower, Inc.
    e. Name of Project: Upper Falls Hydroelectric Project.
    f. Location: The project would be located at the existing Riverside
and Kendrick-Davis Dams on the Mascoma River in Grafton County, New
Hampshire. The project would not occupy United States lands.
    g. Filed Pursuant to: 18 CFR 5.3 of the Commission's regulations.
    h. Applicant Contact: Mr. Terry McDonnell, President, Great Bear
Hydropower, Inc., 15 Brigham Hill Road, Norwich, VT 05055, (802) 649-
9099.
    i. FERC Contact: John Ramer,<PHONE_NUMBER> or<EMAIL_ADDRESS>    j. Great Bear Hydropower, Inc. filed its request to use the
Traditional Licensing Process on February 5, 2007. Great Bear
Hydropower, Inc. filed public notice of its request on February 20,
2007. In a letter dated March 16, 2007, the Director of the Office of
Energy Projects approved Great Bear Hydropower, Inc.'s request to use
the Traditional Licensing Process.
    k. With this notice, we are initiating informal consultation with:
(a) The U.S. Fish and Wildlife Service under section 7 of the
Endangered Species Act; and (b) the New Hampshire State Historic
Preservation Officer, as required by section 106, National Historical
Preservation Act, and the implementing regulations of the Advisory
Council on Historic Preservation at 36 CFR 800.2.
    l. Great Bear Hydropower, Inc. filed a Pre-Application Document
(PAD; including a proposed process plan and schedule) with the
Commission, pursuant to 18 CFR 5.6 of the Commission's regulations.
    m. A copy of the PAD is available for review at the Commission in
the Public Reference Room or may be viewed on the Commission's Web site
(http://www.ferc.gov), using the ``eLibrary'' link. Enter the docket

number, excluding the last three digits in the docket number field to
access the document. For assistance, contact FERC Online Support at
<EMAIL_ADDRESS>or toll free at 1-866-208-3676, or for TTY,

(202) 502-8659. A copy is also available for inspection and
reproduction at the address in paragraph h.
    Register online at http://ferc.gov/docs-filing/esubscription.asp to

be notified via e-mail of new filing and issuances related to this or
other pending projects. For assistance, contact FERC Online Support.

Philis Posey,
Acting Secretary.
[FR Doc. E7-5767 Filed 3-28-07; 8:45 am]

BILLING CODE 6717-01-P


MISSISSIPPI
DEPARTMENT OF ENVIRONMENTAL QUALITY
                          OFFICE OF POLLUTION CONTROL

                               TECHNICAL SUPPORT
                                   DOCUMENT

                               ATTENDANT TO THE
         STATE IMPLEMENTATION PLAN (SIP) REVISION FOR PURPOSES OF THE

              EMISSIONS STATEMENT AND EMISSIONS INVENTORY FOR THE
            OZONE NONATTAINMENT AREA OF DESOTO COUNTY, MISSISSIPPI

                           ADOPTED NOVEMBER 20, 2014

	TABLE OF CONTENTS

Discussion	Page 3

Purpose of the Revision.	Page 3

Sources Affected by the Revision.	Page 3

Pollutants Involved.	Page 4

Changes in Allowable Emissions.	Page 4

Location/Attainment Status.	Page 4

Part D SIP/Attainment Demonstration Impact.	Page 4

Air Quality Impacts.	Page 4

Modeling.	Page 4

Compliance Methods to be Employed.	Page 4

Public Comment Period.	Page 4

Response to Comments on Proposed SIP Revision.	Page 5

Regulation Changes.	Page 5

Final Adoption of SIP Revision.	Page 5

	ATTACHMENTS

Regulations in EPA format	Attachment 1
  11 Miss. Admin. Code, Part 2, Chapter 11

Proofs of Publication.	Attachment 2
  Notice of Public Comment Period
  Proofs of Publication

Final Adoption Evidence.	Attachment 3
  Commission Order
  Secretary of State Filing Form

DISCUSSION:

      The purpose of this State Implementation Plan (SIP) Revision is to implement Sections 182(a)(1) and 182(a)(3) of the Clean Air Act (CAA), as amended (42 United States Code (U.S.C.) 7401 et seq.), with respect to the requirements for an Emissions Statement and an Emissions Inventory for the Ozone Nonattainment Area of DeSoto County, Mississippi.

PURPOSE OF THE REVISION:

      The purpose of this State Implementation Plan (SIP) Revision is to implement Sections 182(a)(1) and 182(a)(3) of the Clean Air Act (CAA), as amended (42 United States Code (U.S.C.) 7401 et seq.), with respect to the requirements for an Emissions Statement and an Emissions Inventory for the Ozone Nonattainment Area of DeSoto County, Mississippi.

      Section 182(a)(3)(B) of the CAA requires Marginal and above areas to submit an emissions statement within 2 years of designation as nonattainment.  Specifically it provides that the emissions statement must: "...require that the owner or operator of each stationary source of oxides of nitrogen or volatile organic compounds provide the state with a statement, in such form as the Administrator may prescribe (or an equivalent alternative developed by the state), for classes or categories of sources, showing the actual emissions of oxides of nitrogen and volatile organic compounds from that source.  The first such statement shall be submitted within 3 years after the date of the enactment of the CAA Amendments of 1990. Subsequent statements shall be submitted at least every year thereafter."  Appendix U contains new state regulations which will implement the Emissions Statement requirement for any areas designated as nonattainment for the National Air Quality Standard for ground-level ozone.  The new regulations are 11 Mississippi Administrative Code, Part 2, Chapter 11, Regulations for Ambient Air Quality Nonattainment Areas.  The regulations are applicable to sources in DeSoto County, Mississippi as well as any other areas that might be designated nonattainment in the future.

      CAA section 182(a)(1) requires that Marginal and above ozone nonattainment areas submit a base year emissions inventory for the nonattainment area 2 years after designation as nonattainment.  The emissions are reported as tons/average summer day of pollutant.  In accordance with the requirements of EPA's Emissions Inventory Guidance for Implementation of Ozone and Particulate Matter National Ambient Air Quality Standards (NAAQS) and Regional Haze Regulations, November 2005, the only pollutants reported are Nitrogen Oxides (NOx) and Volatile Organic Compounds (VOC) and emissions are summed as tons/average summer day for the year 2011.  Appendix V contains the Emission Inventory for DeSoto County, Mississippi.

SOURCES AFFECTED BY THE REVISION:

      This SIP revision potentially affects all sources and practices subject to air pollution control regulations in Mississippi.

POLLUTANTS INVOLVED:

      The pollutants affected by this SIP Revision are all pollutants for which the U.S. Environmental Agency has promulgated a National Ambient Air Quality Standard (NAAQS).

CHANGES IN ALLOWABLE EMISSIONS:

      This SIP Revision does not include any provisions for emission limitation changes.

LOCATION/ATTAINMENT STATUS:

      The northern portion of DeSoto County, Mississippi has been classified as Marginal Non-attainment for the 2008 National Ambient Air Quality Standard (NAAQS) for Ozone.  All other areas of the state are designated attainment for all NAAQS.

PART D SIP/ATTAINMENT DEMONSTRATION IMPACT:

      This SIP Revision conforms with the requirements of Section 182(a)(3)(B) and Section 182(a)(1) of the Federal Clean Air Act.

AIR QUALITY IMPACTS:

      This SIP Revision will have no adverse impact on air quality.

MODELING:

      No modeling is necessary for this SIP Revision.

COMPLIANCE METHODS TO BE EMPLOYED:

      No compliance methodology is applicable to this SIP Revison.

PUBLIC HEARING:

      Public participation on the SIP Revision was achieved by a public hearing held on October 2, 2014, at 10:30 a.m. in the Commission Hearing Room (Room 104A) of the Mississippi Department of Environmental Quality Office Building located at 515 E. Amite Street, Jackson, Mississippi 39201 in accordance with the information provided in the public notice and Mississippi Administrative Procedures Act.  The notice for public hearing was published consistent with procedures approved by EPA.

      The notice of public hearing was published on September 2, September 9, and September 16, 2014, in daily newspapers in the cities of Gulfport, Hernando, Jackson, and Tupelo in the State of Mississippi.  The notice of public hearing, the proposed SIP revision, and proposed amendments to state air pollution control regulations were made available for public review in the main branches of the public libraries in Gulfport, Hernando, and Tupelo and at the Mississippi Department of Environmental Quality, 515 E. Amite St., Jackson, Mississippi, 39201 and was also available on the Department's website http://www.deq.state.ms.us.  The public notice was also mailed to persons on the air pollution control regulation mailing list.

      TSD Attachment 2 contains a copy of the notice of public hearing and copies of proofs of publication of the notice of public hearing.

RESPONSE TO COMMENTS ON PLAN REVISION:

      No comments regarding the SIP Revision other than from EPA were received during the public comment period.  Changes suggested by EPA were incorporated into the SIP Revision.  Attachment 3 contains the EPA comment letter.

REGULATION CHANGES:

      Appendix U of the SIP Revision contains new state regulations which will implement the Emissions Statement requirement for any areas designated as nonattainment for the National Air Quality Standard for ground-level ozone.  The new regulations are 11 Mississippi Administrative Code, Part 2, Chapter 11, Regulations for Ambient Air Quality Nonattainment Areas.  The regulations are applicable to sources in DeSoto County, Mississippi as well as any other areas that might be designated nonattainment in the future. See TSD Attachment 1.

FINAL ADOPTION OF PLAN REVISION:

      TSD Attachment 4 contains evidence of final adoption of the SIP revision.

ATTACHMENT 1

REGULATIONS IN EPA FORMATATTACHMENT 2

                           NOTICE OF PUBLIC HEARING
                             PROOFS OF PUBLICATION
ATTACHMENT 3

EPA COMMENT LETTER
                                 ATTACHMENT 4

             EVIDENCE OF ADOPTION OF SIP REVISION AND REGULATIONS