[Federal Register: August 21, 2008 (Volume 73, Number 163)]
[Proposed Rules]
[Page 49359-49362]
[DOCID:fr21au08-13]

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Proposed Rules
                                                Federal Register
________________________________________________________________________

This section of the FEDERAL REGISTER contains notices to the public of
the proposed issuance of rules and regulations. The purpose of these
notices is to give interested persons an opportunity to participate in
the rule making prior to the adoption of the final rules.

========================================================================

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2008-0903; Directorate Identifier 2008-NM-123-AD]
RIN 2120-AA64

Airworthiness Directives; Cessna Model 560 Airplanes

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

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: The FAA proposes to supersede an existing airworthiness
directive (AD) that applies to certain Cessna Model 560 airplanes. The
existing AD currently requires installing new minimum airspeed placards
to notify the flightcrew of the proper airspeeds for operating in both
normal and icing conditions. The existing AD also requires revising the
airplane flight manual to provide limitations and procedures for
operating in icing conditions, for operating with anti-ice systems
selected ``on'' independent of icing conditions, and for recognizing
and recovering from inadvertent stall. The existing AD also provides an
optional terminating action for the placard installation. This proposed
AD would require the previously optional terminating action. This
proposed AD results from an evaluation of in-service airplanes
following an accident. The evaluation indicated that some airplanes
might have an improperly adjusted stall warning system. We are
proposing this AD to prevent an inadvertent stall due to the inadequate
stall warning margin provided by an improperly adjusted stall warning
system, which could result in loss of controllability of the airplane.

DATES: We must receive comments on this proposed AD by October 6, 2008.

ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Portal: Go to http://
www.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: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays.
    For service information identified in this AD, contact Cessna
Aircraft Co., P.O. Box 7706, Wichita, Kansas 67277.

Examining the AD 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 proposed AD, the regulatory
evaluation, any comments received, and other information. The street
address for the Docket Office (telephone<PHONE_NUMBER>) is in the
ADDRESSES section. Comments will be available in the AD docket shortly
after receipt.

FOR FURTHER INFORMATION CONTACT: Bob Busto, Aerospace Engineer, Systems
and Propulsion Branch, ACE-116W, FAA, Wichita Aircraft Certification
Office, 1801 Airport Road, Room 100, Mid-Continent Airport, Wichita,
Kansas 67209; telephone<PHONE_NUMBER>; fax<PHONE_NUMBER>.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or
arguments about this proposed AD. Send your comments to an address
listed under the ADDRESSES section. Include ``Docket No. FAA-2008-0903;
Directorate Identifier 2008-NM-123-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of this proposed AD. We
will consider all comments received by the closing date and may amend
this proposed AD because of those comments.
    We will post all comments we receive, without change, to http://
www.regulations.gov, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this proposed AD.

Discussion

    On November 5, 2007, we issued AD 2007-23-13, amendment 39-15259
(72 FR 64135, November 15, 2007), for certain Cessna Model 560
airplanes. That AD requires installing new minimum airspeed placards to
notify the flightcrew of the proper airspeeds for operating in both
normal and icing conditions. That AD also requires revising the
airplane flight manual to provide limitations and procedures for
operating in icing conditions, for operating with anti-ice systems
selected ``on'' independent of icing conditions, and for recognizing
and recovering from inadvertent stall. That AD also provides an
optional terminating action for the placard installation. That AD
resulted from an evaluation of in-service airplanes following an
accident. The evaluation indicated that some airplanes may have an
improperly adjusted stall warning system. We issued that AD to prevent
an inadvertent stall due to the inadequate stall warning margin
provided by an improperly adjusted stall warning system, which could
result in loss of controllability of the airplane.

Actions Since Existing AD Was Issued

    The preamble to AD 2007-23-13 explains that we consider the
requirements ``interim action'' and were considering further rulemaking
to require a functional test of the angle-of-attack (AOA) system to
adjust the calibration settings of the AOA system, which, in addition
to the AFM revisions, would constitute terminating action for the
placard installation required by this AD. The interim action was
intended to heighten flight crew awareness as to the proper operational
airspeeds, aircraft characteristics, and stall recovery techniques. We
now have determined that further rulemaking is indeed necessary, and
this proposed AD follows from that determination.

Relevant Service Information

    We have reviewed Cessna Alert Service Letters ASL560-34-34 (for
airplanes equipped with a single AOA system) and ASL560-34-35 (for
airplanes equipped with a dual AOA system), both Revision 3, both dated

March 6, 2008, both including Attachments. We referred to Revision 1 of
the alert service letters as the appropriate source of service
information for doing the optional terminating action (i.e., doing a
functional test of the AOA system) specified in AD 2007-23-13. Revision
3 contains essentially the same procedures as Revision 1. Revision 3
includes changes to the cruise configuration tolerance and to the
approach configuration, and standardizes certain nomenclature.
    We have also reviewed Cessna Service Bulletin SB560-34-143,
Revision 1, dated November 21, 2007. We referred to the original issue,
dated September 7, 2007, as the appropriate source of service
information for doing the placard installation specified in AD 2007-23-
13. Revision 1 contains essentially the same procedures as the original
issue and adds references to certain temporary changes (which are
already specified in AD 2007-23-13).
    Accomplishing the actions specified in the service information is
intended to adequately address the unsafe condition.

FAA's Determination and Requirements of the Proposed AD

    We have evaluated all pertinent information and identified an
unsafe condition that is likely to develop on other airplanes of the
same type design. For this reason, we are proposing this AD, which
would supersede AD 2007-23-13 and would retain the requirements of the
existing AD. This proposed AD would also require accomplishing the
terminating action specified in the alert service letters described
previously. This proposed AD would also require sending the functional
test results to the manufacturer.

Costs of Compliance

    There are about 538 airplanes of the affected design in the
worldwide fleet. The following table provides the estimated costs for
U.S. operators to comply with this proposed AD. There are about 400
U.S. registered airplanes.

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                             Average
                           Action                              Work hours   labor rate    Cost per    Fleet cost
                                                                             per hour     airplane
----------------------------------------------------------------------------------------------------------------
AFM Revision (required by AD 2007-23-13)....................            1          $80          $80      $32,000
Placard Installation (required by AD 2007-23-13)............            1           80           80       32,000
Functional Test (new proposed action).......................            8           80          640      256,000
----------------------------------------------------------------------------------------------------------------

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 proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would 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 the proposed
regulation:
    1. Is not a ``significant regulatory action'' under Executive Order
12866;
    2. Is not a ``significant rule'' under the 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 proposed 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, Safety.

The Proposed Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

    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]

    2. The Federal Aviation Administration (FAA) amends Sec.  39.13 by
removing amendment 39-15259 (72 FR 64135, November 15, 2007) and adding
the following new airworthiness directive (AD):

Cessna Aircraft Company: Docket No. FAA-2008-0903; Directorate
Identifier 2008-NM-123-AD.

Comments Due Date

    (a) The FAA must receive comments on this AD action by October
6, 2008.

Affected ADs

    (b) This AD supersedes AD 2007-23-13.

Applicability

    (c) This AD applies to Cessna Model 560 airplanes, certificated
in any category, serial numbers (S/Ns) 560-0001 through 0538
inclusive.

Unsafe Condition

    (d) This AD results from an evaluation of in-service airplanes
following an accident. The evaluation indicated that some airplanes
may have an improperly adjusted stall warning system. We are issuing
this AD to prevent an inadvertent stall due to the inadequate stall
warning margin provided by an improperly adjusted stall warning
system, which could result in loss of controllability 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.

Restatement of Requirements of AD 2007-23-13

Airplane Flight Manual (AFM) Revision

    (f) Within 14 days after November 30, 2007 (the effective date
of AD 2007-23-13), revise

the Operating Limitations, Normal Procedures, Emergency Procedures,
and the Approach and Landing sections of the AFM to include the
information in the temporary changes (TCs) identified in Table 1 of
this AD, as applicable, except as required by paragraph (k) of this
AD. These TCs provide limitations and procedures for operating in
icing conditions, for operating with anti-ice systems selected
``on'' independent of icing conditions, and for recognizing and
recovering from inadvertent stall. Operate the airplane according to
the limitations and procedures in the applicable TCs.

    Note 1: This may be done by inserting a copy of the applicable
TCs into the applicable AFM. When these TCs have been included in
the general revisions of the AFM, the general revisions may be
inserted into the AFM (in lieu of the applicable TCs), provided the
relevant information in the general revision is identical to that in
the applicable TCs.

                      Table 1--Cessna Model 560 TCs
------------------------------------------------------------------------
          Airplanes                          Applicable TC
------------------------------------------------------------------------
Model 560 airplanes, S/Ns 560- 560FM TC-R13-08, dated August 31, 2007,
 0001 through -0259 inclusive.  to the Cessna Model 560 Citation V AFM.
                               560FM TC-R13-09, dated August 31, 2007,
                                to the Cessna Model 560 Citation V AFM.
                               560FM TC-R13-10, dated August 31, 2007,
                                to the Cessna Model 560 Citation V AFM.
                               560FM TC-R13-12, dated August 31, 2007,
                                to the Cessna Model 560 Citation V AFM.
                               560FM TC-R13-13, dated August 31, 2007,
                                to the Cessna Model 560 Citation V AFM.
                               560FM TC-R13-14, dated October 2, 2007,
                                to the Cessna Model 560 Citation V AFM.
                               560FM TC-R13-15, dated October 2, 2007,
                                to the Cessna Model 560 Citation V AFM.
                               560FM TC-R13-16, dated October 2, 2007,
                                to the Cessna Model 560 Citation V AFM.
                               560FM TC-R13-17, dated October 2, 2007,
                                to the Cessna Model 560 Citation V AFM.
                               560FM TC-R13-18, dated October 2, 2007,
                                to the Cessna Model 560 Citation V AFM.
                               560FM TC-R13-19, dated October 2, 2007,
                                to the Cessna Model 560 Citation V AFM.
                               560FM TC-R13-20, dated October 2, 2007,
                                to the Cessna Model 560 Citation V AFM.
Model 560 airplanes, S/Ns 560- 56FMA TC-R11-16, dated August 31, 2007,
 0260 through -0538 inclusive.  to the Cessna Model 560 Citation Ultra
                                AFM.
                               56FMA TC-R11-17, dated August 31, 2007,
                                to the Cessna Model 560 Citation Ultra
                                AFM.
                               56FMA TC-R11-19, dated August 31, 2007,
                                to the Cessna Model 560 Citation Ultra
                                AFM.
                               56FMA TC-R11-20, dated August 31, 2007,
                                to the Cessna Model 560 Citation Ultra
                                AFM.
                               56FMA TC-R11-21, dated August 31, 2007,
                                to the Cessna Model 560 Citation Ultra
                                AFM.
                               56FMA TC-R11-23, dated October 2, 2007,
                                to the Cessna Model 560 Citation Ultra
                                AFM.
                               56FMA TC-R11-24, dated October 2, 2007,
                                to the Cessna Model 560 Citation Ultra
                                AFM.
                               56FMA TC-R11-25, dated October 2, 2007,
                                to the Cessna Model 560 Citation Ultra
                                AFM.
                               56FMA TC-R11-26, dated October 2, 2007,
                                to the Cessna Model 560 Citation Ultra
                                AFM.
                               56FMA TC-R11-27, dated October 2, 2007,
                                to the Cessna Model 560 Citation Ultra
                                AFM.
                               56FMA TC-R11-28, dated October 2, 2007,
                                to the Cessna Model 560 Citation Ultra
                                AFM.
                               56FMA TC-R11-29, dated October 2, 2007,
                                to the Cessna Model 560 Citation Ultra
                                AFM.
                               56FMA TC-R11-30, dated October 2, 2007,
                                to the Cessna Model 560 Citation Ultra
                                AFM.
------------------------------------------------------------------------

Placard Installation

    (g) Within 30 days after November 30, 2007, install new minimum
airspeed placards to notify the flightcrew of the proper airspeeds
for operating in normal and icing conditions, in accordance with the
Accomplishment Instructions of Cessna Service Bulletin SB560-34-143,
dated September 7, 2007, including Attachment and Service Bulletin
Supplemental Data; or Cessna Service Bulletin SB560-34-143, Revision
1, dated November 21, 2007. As of the effective date of this AD,
only Revision 1 may be used. The placards must be installed above or
near the pilot and copilot attitude indicators or primary flight
displays and must be in clear view of the pilot and copilot. The
placards may be removed when the actions specified in paragraphs (i)
and (j) of this AD have been accomplished.

No Maintenance Transaction Report Required for Cessna Service Bulletin

    (h) Although Cessna Service Bulletin SB560-34-143, dated
September 7, 2007, including Attachment and Service Bulletin
Supplemental Data; and Cessna Service Bulletin SB560-34-143,
Revision 1, dated November 21, 2007; referred to in paragraph (g) of
this AD, specify to submit a maintenance transaction report to the
manufacturer, this AD does not include that requirement.

New Requirements of This AD

Terminating Action

    (i) Within 6 months after the effective date of this AD, do a
functional test of the angle-of-attack (AOA) system, and adjust the
calibration settings of the AOA system as applicable, in accordance
with Cessna Alert Service Letter ASL560-34-34 (for airplanes
equipped with a single AOA system) or ASL560-34-35 (for airplanes
equipped with a dual AOA system), both Revision 1, both dated
October 2, 2007, both including Attachments, as applicable; or
Cessna Alert Service Letter ASL560-34-34 or ASL560-34-35, both
Revision 3, both dated March 6, 2008, both including Attachments, as
applicable. As of the effective date of this AD, only Revision 3 may
be used. Doing the functional test of the AOA system, adjusting the
calibration settings of the AOA system as applicable, and submitting
the AOA system test data as specified in paragraph (j) of this AD,
terminates the placard installation required by paragraph (g) of
this AD.

    Note 2: Maintenance Manual Revision 24 of Cessna 560 Maintenance
Manual 56MM has been changed to reflect the intent of the ASLs for
the maintenance actions and periodic inspections of the AOA/Stall
Warning System.

Reporting AOA System Test Data

    (j) Submit the AOA system test data report for the functional
test specified in paragraph (i) of this AD to Glenn Todd, Citation
Customer Support Engineer, Department 572, P.O. Box 7706, Wichita,
KS 67277-7706, e-mail<EMAIL_ADDRESS>fax: 1-316-517-
8500 or 1-316-206-2337. Submit the report at the applicable time
specified in paragraph (j)(1) or (j)(2) of this AD. The report must
include the AOA test data, the airplane serial number and
registration number, and the number of landings and flight hours on
the airplane. Under the provisions of the Paperwork Reduction Act
(44 U.S.C. 3501 et seq.), the Office of Management and Budget (OMB)
has approved the information collection requirements contained in
this AD and has assigned OMB Control Number 2120-0056.
    (1) If the functional test was done after November 30, 2007:
Submit the report within 30 days after doing the functional test.
    (2) If the inspection was accomplished prior to November 30,
2007: Submit the report within 30 days after November 30, 2007.

Removal of Warning From the Limitations Section of the AFM

    (k) For airplanes on which the actions required by paragraph (i)
of this AD have been done: Within 30 days after doing the actions
required by paragraph (i) of this AD or within 30 days after the
effective date of this AD, whichever occurs later, revise the
Limitations Section of the AFM by removing the following Warning
statement:

    ``Warning: Stick Shaker May Not Activate Prior to Buffet/Roll-
Off If Airspeed Is Reduced Below the Appropriate Minimum Speed.''

No Maintenance Transaction Report Required for Cessna Service Letters

    (l) Cessna Alert Service Letters ASL560-34-34 and ASL560-34-35,
both Revision 1, both dated October 2, 2007, both including
Attachments; and Cessna Alert Service Letters ASL560-34-34 and
ASL560-34-35, both Revision 3, both dated March 6, 2008, both
including Attachments; specify to submit a maintenance transaction
report to the manufacturer. This AD does not include that
requirement.

Actions Accomplished According to Previous Issue of Service Bulletin

    (m) Actions accomplished before the effective date of this AD in
accordance with Cessna Alert Service Letter ASL560-34-34 or ASL560-
34-35, both Revision 2, both dated January 11, 2008, both including
Attachments, are considered acceptable for compliance with the
corresponding action specified in paragraph (i) of this AD.

Alternative Methods of Compliance (AMOCs)

    (n)(1) The Manager, Wichita Aircraft Certification Office (ACO),
FAA, ATTN: Bob Busto, Aerospace Engineer, Systems and Propulsion
Branch, ACE-116W, FAA, Wichita ACO, 1801 Airport Road, Room 100,
Mid-Continent Airport, Wichita, Kansas 67209; telephone (316) 946-
4157; fax<PHONE_NUMBER>; has the authority to approve AMOCs for
this AD, if requested using 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.

    Issued in Renton, Washington, on August 12, 2008.
Michael J. Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E8-19386 Filed 8-20-08; 8:45 am]

BILLING CODE 4910-13-P


[Federal Register Volume 79, Number 102 (Wednesday, May 28, 2014)]
[Notices]
[Pages 30600-30601]
[FR Doc No: 2014-12322]

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DEPARTMENT OF ENERGY

Federal Energy Regulatory Commission

Combined Notice of Filings 1

    Take notice that the Commission received the following exempt
wholesale generator filings:

    Docket Numbers: EG14-56-000.
    Applicants: Pullman & Comley, LLC.
    Description: Self-Certification of EG of GRE 314 East Lyme, LLC.
    Filed Date: 5/19/14.
    Accession Number: 20140519-5213.
    Comments Due: 5 p.m. e.t. 6/9/14.

    Take notice that the Commission received the following electric
rate filings:

    Docket Numbers: ER10-2614-005.
    Applicants: ENMAX Energy Marketing, Inc.
    Description: Enmax Energy Marketing, Inc. submits updated market
power analysis.
    Filed Date: 5/16/14.
    Accession Number: 20140519-0001.
    Comments Due: 5 p.m. e.t. 7/15/14.

    Docket Numbers: ER10-2864-001; ER10-2863-001; ER10-2862-001; ER10-
2867-001.
    Applicants: Las Vegas Cogeneration LP, Las Vegas Cogeneration II,
LLC, Valencia Power, LLC, Harbor Cogeneration Company, LLC.
    Description: Second Supplement to June 28, 2013 Triennial Market
Power Analysis of SGOC Southwest MBR Sellers for the Southwest Region.
    Filed Date: 5/20/14.
    Accession Number: 20140520-5061.
    Comments Due: 5 p.m. e.t. 5/30/14.

    Docket Numbers: ER10-2881-012; ER10-2882-012; ER10-2883-012; ER10-
2884-012; ER10-2885-012; ER10-2641-012; ER10-2663-012; ER10-2886-012;
ER13-1101-007; ER13-1541-006.
    Applicants: Southern Company Services, Inc. (as Agent, Alabama
Power Company, Georgia Power Company, Southern Power Company,
Mississippi Power Company, Gulf Power Company, Oleander Power Project,
L.P., Southern Company--Florida LLC, Southern Turner Cimarron I, LLC,
Campo Verde Solar, LLC, Spectrum Nevada Solar, LLC.
    Description: Notice of Non-Material of Change in Status of Alabama
Power Company, et al.
    Filed Date: 5/20/14.
    Accession Number: 20140520-5105.
    Comments Due: 5 p.m. e.t. 6/10/14.

    Docket Numbers: ER14-1711-001.
    Applicants: TC Ravenswood, LLC.
    Description: Oil Burn Rate Schedule to be effective 5/19/2014.
    Filed Date: 5/19/14.
    Accession Number: 20140519-5234.
    Comments Due: 5 p.m. e.t. 5/29/14.

    Docket Numbers: ER14-1772-000.
    Applicants: Oklahoma Cogeneration, LLC.
    Description: Supplement to April 25, 2014 Oklahoma Cogeneration,
LLC Notice of Succession and Tariff Revisions.
    Filed Date: 5/19/14.
    Accession Number: 20140519-5176.
    Comments Due: 5 p.m. e.t. 6/9/14.

    Docket Numbers: ER14-1988-000.
    Applicants: PJM Interconnection, L.L.C.
    Description: Queue Position X4-035; Original Service Agreement No.
3830 to be effective 4/18/2014.
    Filed Date: 5/19/14.
    Accession Number: 20140519-5229.
    Comments Due: 5 p.m. e.t. 6/9/14.

    Docket Numbers: ER14-1989-000.
    Applicants: New Hampshire Transmission, LLC.
    Description: Request for Limited Tariff Waiver and Motion for
Expedited Consideration of New Hampshire Transmission, LLC.
    Filed Date: 5/19/14.
    Accession Number: 20140519-5250.
    Comments Due: 5 p.m. e.t. 5/29/14.

    Docket Numbers: ER14-1990-000.
    Applicants: Southwest Power Pool, Inc.
    Description: 2881 City of Chanute, KS NITSA NOA to be effective 5/
1/2014.
    Filed Date: 5/20/14.
    Accession Number: 20140520-5069.
    Comments Due: 5 p.m. e.t. 6/10/14.

    Docket Numbers: ER14-1991-000.
    Applicants: Midcontinent Independent System Operator, Inc.
    Description: 2014-05-20--SA 2662 MidAm GIA (J274) to be effective
5/21/2014.
    Filed Date: 5/20/14.
    Accession Number: 20140520-5070.
    Comments Due: 5 p.m. e.t. 6/10/14.

    Docket Numbers: ER14-1992-000.
    Applicants: Dynegy Danskammer, L.L.C.
    Description: Notice of Cancellation to be effective 5/21/2014.
    Filed Date: 5/20/14.
    Accession Number: 20140520-5074.
    Comments Due: 5 p.m. e.t. 6/10/14.

    Docket Numbers: ER14-1993-000.
    Applicants: Southwest Power Pool, Inc.
    Description: Loss Compensation Clarification to be effective 7/19/
2014.
    Filed Date: 5/20/14.
    Accession Number: 20140520-5130.
    Comments Due: 5 p.m. e.t. 6/10/14.

    The filings are accessible in the Commission's eLibrary system by
clicking on the links or querying the docket number.
    Any person desiring to intervene or protest in any of the above
proceedings must file in accordance with Rules 211 and 214 of the
Commission's Regulations (18 CFR 385.211 and 385.214) on or before 5:00
p.m. Eastern time on the specified comment date. Protests may be
considered, but intervention is necessary to become a party to the
proceeding.
    eFiling is encouraged. More detailed information relating to filing
requirements, interventions, protests, service, and qualifying
facilities filings can be found at: http://www.ferc.gov/docs-filing/efiling/filing-req.pdf. For other information, call<PHONE_NUMBER>
(toll free). For TTY, call<PHONE_NUMBER>.

    Dated: May 20, 2014.
Nathaniel J. Davis, Sr.,
Deputy Secretary.
[FR Doc. 2014-12322 Filed 5-27-14; 8:45 am]
BILLING CODE 6717-01-P


[Federal Register Volume 88, Number 140 (Monday, July 24, 2023)]
[Rules and Regulations]
[Pages 47351-47354]
[FR Doc No: 2023-15714]

========================================================================
Rules and Regulations
                                                Federal Register
________________________________________________________________________

This section of the FEDERAL REGISTER contains regulatory documents
having general applicability and legal effect, most of which are keyed
to and codified in the Code of Federal Regulations, which is published
under 50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by the Superintendent of Documents.

========================================================================

Federal Register / Vol. 88, No. 140 / Monday, July 24, 2023 / Rules
and Regulations

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2023-1506; Project Identifier MCAI-2023-00784-R;
Amendment 39-22512; AD 2023-13-51]
RIN 2120-AA64

Airworthiness Directives; Airbus Helicopters

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; request for comments.

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

SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2022-19-08
which applied to all Airbus Helicopters Model SA341G and SA342J
helicopters. AD 2022-19-08 was prompted by a report of manufacturing
defects on multiple tail rotor blades (TRBs) and required visually
inspecting certain part-numbered TRBs for the presence of a linear
indication, and, depending on the inspection results, fluorescent
penetrant inspecting the TRB and further corrective actions if
necessary. AD 2022-19-08 also prohibited installing an affected TRB
unless certain requirements had been met. This AD was prompted by the
determination that parts that have accumulated more than 500 flight
hours (FH) since new are also affected by the unsafe condition. In
addition, the defined compliance time for the visual inspection of the
root area of each affected part was determined to be too strict. This
AD retains certain requirements of AD 2022-19-08, includes all TRBs in
the inspection requirements, and increases a compliance time as
specified in a European Union Aviation Safety Agency (EASA) AD, which
is incorporated by reference. The FAA previously sent this AD as an
emergency AD to all known U.S. owners and operators of these
helicopters. The FAA is issuing this AD to address the unsafe condition
on these products.

DATES: This AD is effective August 8, 2023. Emergency AD 2023-13-51,
issued on June 27, 2023, which contained the requirements of this
amendment, was effective with actual notice.
    The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of August 8,
2023.
    The FAA must receive comments on this AD by September 7, 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.
    Material Incorporated by Reference:
     For EASA material incorporated by reference in this final
rule, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany;
telephone +49 221 8999 000; email [email protected]; internet
easa.europa.eu. You may find the EASA material on the EASA website at
ad.easa.europa.eu.
     You may view this material at the FAA, Office of the
Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321,
Fort Worth, TX 76177. For information on the availability of this
material at the FAA, call<PHONE_NUMBER>. Service information that is
incorporated by reference is also available in the AD docket at
regulations.gov under Docket No. FAA-2023-1506.
    Other Related Service Information: For Airbus Helicopters service
information identified in this final rule, contact Airbus Helicopters,
2701 North Forum Drive, Grand Prairie, TX 75052; telephone (972) 641-
0000 or<PHONE_NUMBER>; fax<PHONE_NUMBER>; or at airbus.com/helicopters/services/technical-support.html. You may also view this
service information at the FAA contact information under Material
Incorporated by Reference above.

Examining the AD Docket

    You may examine the AD docket at regulations.gov under Docket No.
FAA-2023-1506; 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, the EASA AD, any comments received, and other
information. The street address for Docket Operations is listed above.
Comments will be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Dan McCully, Aviation Safety Engineer,
FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone
(404) 474-5548; 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-2023-1506; Project Identifier MCAI-
2023-00784-R'' 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 Dan McCully, Aviation Safety Engineer, FAA, 1600 Stewart
Avenue, Suite 410, Westbury, NY 11590; telephone<PHONE_NUMBER>; 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 2022-19-08, Amendment 39-22177 (87 FR 56865,
September 16, 2022) (AD 2022-19-08), for Airbus Helicopters Model
SA341G and SA342J helicopters. AD 2022-19-08 was prompted by a report
of manufacturing defects on TRBs. AD 2022-19-08 required visually
inspecting certain part-numbered TRBs for the presence of a linear
indication; and depending on the inspection results, fluorescent
penetrant inspecting the TRB and further corrective actions if
necessary. AD 2022-19-08 also prohibited installing an affected TRB
unless certain requirements had been met, as specified in EASA
Emergency AD 2022-0169-E, dated August 12, 2022 (EASA AD 2022-0169-E).
The FAA issued AD 2022-19-08 to detect linear indications on a TRB
which could result in an in-flight TRB loss, unbalance or damage to the
tail or other parts of the helicopter, and subsequent loss of control
of the helicopter.
    EASA, which is the Technical Agent for the Member States of the
European Union, issued EASA AD 2022-0169-E to correct an unsafe
condition for Airbus Helicopters Model SA 341 G and SA 342 J (Gazelle)
helicopters, all serial numbers. EASA advised that an additional sample
of TRBs from different manufacturing batches were visually inspected
and further analysis revealed visual linear indications on
approximately 75% of the TRBs inspected. EASA further advised that the
visual linear indications were positioned at the aerofoil connection
radius and perpendicular to the grain flow direction. EASA advised that
follow-up dye penetrant inspections confirmed up to 20% of the TRBs
were found to be affected and have a high risk for crack propagation.
Additionally, EASA advised that the investigation of the root cause of
the unsafe condition was still on-going; therefore EASA considered EASA
AD 2022-0169-E an immediate protective measure and stated that further
action may follow.

Actions Since AD 2022-19-08 Was Issued

    Since the FAA issued AD 2022-19-08, EASA superseded EASA AD 2022-
0169-E with EASA Emergency AD 2023-0128-E, dated June 26, 2023 (EASA AD
2023-0128-E). EASA advises that after EASA AD 2022-0169-E was issued,
it was determined that affected parts that have accumulated more than
500 FH since new are also affected. In addition, the defined compliance
time for the visual inspection of the root area of each affected part
was determined to be too strict. Consequently, Airbus Helicopters
revised its service information accordingly. Superseding EASA AD 2023-
0128-E retains most of the requirements of EASA AD 2022-0169-E, adds an
inspection of affected parts that accumulated more than 500 FH since
new, and amends the compliance time for the visual inspection of
affected parts. Additionally, EASA advises that EASA AD 2023-0128-E is
(still) considered an interim measure and that further AD action may
follow. See EASA AD 2023-0128-E for additional background information.

Related Service Information Under 1 CFR Part 51

    EASA AD 2023-0128-E requires, before any cleaning of the TRB, using
a lamp (1000 lux) to visually inspect the root area of each affected
TRB for the presence of any linear indication; and cleaning certain
areas of each TRB and repeating the visual inspection of the TRB for a
linear indication. Depending on the inspection results, EASA AD 2023-
0128-E requires performing a dye penetrant inspection of the root area
of a TRB, and if a linear indication is detected, replacing the
affected TRB with a serviceable part. Finally, EASA AD 2023-0128-E
prohibits installing an affected TRB on any helicopter after its
effective date.
    This material 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.

Other Related Service Information

    The FAA reviewed Airbus Helicopters Emergency Alert Service
Bulletin (EASB) No. SA341-65.71 for Model SA341G helicopters and non
FAA-type certificated military Model SA341B, C, D, E, F, and H
helicopters; and EASB No. SA342-65.71 for Model SA342J helicopters and
non FAA-type certified military Model SA342K, L, L1, M, M1, and MA
helicopters, each Revision 2 and dated June 19, 2023 (co-published as
one document). This service information specifies procedures for
visually checking the TRB for presence of a linear indication; cleaning
the TRB with a lint free rag and solvent and repeating the visual
check; performing a fluorescent penetrant inspection if a linear
indication is detected; removing and replacing any affected TRB if
necessary; and recording compliance with the service information.

FAA's Determination

    These helicopters been approved by EASA and are approved for
operation in the United States. Pursuant to the FAA's bilateral
agreement with the European Union, EASA, its technical representative,
has notified the FAA of the unsafe condition described in its emergency
AD. The FAA is issuing this AD after evaluating all pertinent
information and determining that the unsafe condition exists and is
likely to exist or develop on other helicopters of the same type
design.

AD Requirements

    This AD requires accomplishing the actions specified in EASA AD
2023-0128-E, described previously, which is incorporated by reference,
except for any differences identified as exceptions in the regulatory
text of this AD and except as discussed under ``Differences Between
this AD and EASA AD 2023-0128-E.''

Explanation of Required Compliance Information

    In the FAA's ongoing efforts to improve the efficiency of the AD
process, the FAA developed a process to use some civil aviation
authority (CAA) ADs as the primary source of information for compliance
with requirements for corresponding FAA ADs. The FAA has been
coordinating this process with manufacturers and CAAs. As a result,
EASA AD 2023-0128-E is incorporated by reference in this FAA final
rule. This AD, therefore, requires compliance with EASA AD 2023-0128-E
in its entirety through that incorporation, except for any differences
identified as exceptions in the regulatory text of this AD. Using
common terms that are the same as the heading of a particular section
in EASA AD 2023-0128-E does not mean that operators need comply only
with that section. For example, where the AD requirement refers to
``all required actions and compliance times,'' compliance with this AD
requirement is not limited to the section titled ``Required Action(s)
and Compliance

Time(s)'' in EASA AD EASA AD 2023-0128-E. Service information
referenced in EASA AD 2023-0128-E for compliance will be available at
regulations.gov under Docket No. FAA-2023-1506.

Differences Between This AD and EASA AD 2023-0128-E

    Although EASA AD 2023-0128-E does not define the phrase ``a linear
indication,'' service information referenced in EASA AD 2023-0128-E
defines this phrase as an indication for which the longest dimension is
at least three times longer than the smallest one. This AD defines a
linear indication as any linear indication perpendicular to the grain
direction of the blade that is detected regardless of size. Where EASA
AD 2023-0128-E requires performing a dye penetrant inspection, this AD
requires a fluorescent penetrant inspection performed by a Level II or
Level III inspector certified in the FAA-acceptable standards for
nondestructive inspection personnel.

Interim Action

    The FAA considers this AD to be interim action.

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 required the immediate adoption of
Emergency AD 2023-13-51, issued on June 27, 2023, to all known U.S.
owners and operators of these helicopters. The FAA found that the risk
to the flying public justified waiving notice and comment prior to
adoption of this rule because the affected part is critical to the
control of a helicopter. In addition, failure of an affected part can
cause the part to depart from the helicopter, thereby causing damage to
the helicopter and subsequent loss of control of the helicopter. Also,
the FAA has no information pertaining to how quickly the condition may
propagate to failure. Investigation is still on-going to determine the
root cause of the defect and the number of parts affected by the same
condition. In light of this, the initial visual inspection must be
accomplished within 10 hours time-in-service. These conditions still
exist, therefore, notice and opportunity for prior public comment are
impracticable and contrary to the public interest 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 forego 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 prior notice and
comment, RFA analysis is not required.

Costs of Compliance

    The FAA estimates that this AD affects 22 helicopters of U.S.
Registry. There may be up to 13 affected TRBs per helicopter. Labor
rates are estimated at $85 per work-hour. Based on these numbers, the
FAA estimates the following costs to comply with this AD.
    Visually inspecting one TRB for presence of a linear indication
takes about 1 work-hour for an estimated cost of $85 per inspection.
Visually inspecting each additional TRB takes about 0.1 work-hour for
an estimated cost of $9 per inspection. The cost for inspecting each
helicopter may be up to $193 and the cost for the U.S. fleet may be up
to $4,246.
    If required, fluorescent penetrant inspecting a TRB for the
presence of a linear indication takes about 2 work-hours for an
estimated cost of $170 per inspection.
    If required, removing an affected TRB and replacing it with a
serviceable TRB takes about 2 work-hours and parts cost about $3,630
for an estimated cost of $3,800 per replacement. Removing each
additional affected TRB and replacing it with a serviceable TRB takes
about an additional 0.5 work-hour and parts cost about $3,630 for an
estimated cost of $3,673 for each additional replacement.

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, 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 2022-19-08, Amendment 39-22177 (87
FR 56865, September 16, 2022); and
0
b. Adding the following new airworthiness directive:

2023-13-51 Airbus Helicopters: Amendment 39-22512; Docket No. FAA-
2023-1506; Project Identifier MCAI-2023-00784-R.

(a) Effective Date

    The FAA issued emergency Airworthiness Directive (AD) 2023-13-51
on June 27, 2023 directly to affected owners and operators. As

a result of such actual notice, the emergency AD was effective for
those owners and operators on the date it was provided. This AD
contains the same requirements as that emergency AD and, for those
who did not receive actual notice, is effective on August 8, 2023.

(b) Affected ADs

    This AD replaces AD 2022-19-08, Amendment 39-22177 (87 FR 56865,
September 16, 2022) (AD 2022-19-08).

(c) Applicability

    This AD applies to all Airbus Helicopters Model SA341G and
SA342J helicopters, certificated in any category.

(d) Subject

    Joint Aircraft System Component (JASC) Code: 6410, Tail Rotor
Blades.

(e) Unsafe Condition

    This AD was prompted by a report of manufacturing defects on
multiple tail rotor blades (TRBs) and a subsequent determination
that TRBs that have accumulated 500 or more hours time-in-service
(TIS), and which were not included in AD 2022-19-08, are also
affected by the unsafe condition and must perform the required
corrective actions. The FAA is issuing this AD to detect linear
indications on a TRB. The unsafe condition, if not addressed, could
result in an in-flight TRB loss, unbalance or damage to the tail or
other parts of the helicopter, and subsequent loss of control of the
helicopter.

(f) Compliance

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

(g) Requirements

    Except as specified in paragraphs (h) and (i) of this AD: Comply
with all required actions and compliance times specified in, and in
accordance with, European Union Aviation Safety Agency Emergency AD
2023-0128-E, dated June 26, 2023 (EASA AD 2023-0128-E).

(h) Exceptions to EASA AD 2023-0128-E

    (1) Where EASA AD 2023-0128-E requires compliance in terms of
flight hours, this AD requires using hours TIS.
    (2) Where EASA AD 2023-0128-E refers to its effective date, this
AD requires using the effective date of this AD.
    (3) Where EASA AD 2023-0128-E refers to the effective date of
EASA AD 2022-0169-E (dated August 12, 2022), this AD requires using
October 3, 2022 (the effective date of AD 2022-19-08).
    (4) Where paragraph (2) of EASA AD 2023-0128-E states, ``linear
indication,'' for the purposes of this AD, a linear indication is
any linear indication perpendicular to the grain direction of the
blade that is detected regardless of size.
    (5) Where paragraph (2) of EASA AD 2023-0128-E states to
``accomplish a dye penetrant inspection of the root area of that
discrepant part in accordance with the instructions of the ASB,''
for this AD replace that text with ``perform a fluorescent penetrant
inspection (FPI) of the root area of each affected part that has any
linear indication (perpendicular to the grain direction of the blade
and regardless of size), in accordance with the Accomplishment
Instructions, paragraph 3.B.3. of the ASB. This FPI must be
accomplished by a Level II or Level III inspector certified in the
FAA-acceptable standards for nondestructive inspection personnel.''

    Note 1 to paragraph (h)(5): Advisory Circular 65-31B contains
examples of FAA-acceptable Level II and Level III qualification
standards criteria for inspection personnel doing nondestructive
test inspections.

    (6) Where paragraph (3) of EASA AD 2023-0128-E specifies to
replace any affected part having a confirmed linear indication with
a serviceable part; instead, for this AD, if as a result of the
action required by paragraph (2) of EASA AD 2023-0128-E, there is
any linear indication (perpendicular to the grain direction of the
blade and regardless of size), before further flight, remove the
affected TRB from service and replace it with a serviceable part as
defined in EASA AD 2023-0128-E.
    (7) Where the service information referenced in EASA AD 2023-
0128-E specifies to discard the TRB if a linear indication is
detected, this AD requires, before further flight, removing that
part from service.
    (8) Where the service information referenced in EASA AD 2023-
0128-E specifies to use tooling, this AD allows the use of
equivalent tooling.
    (9) This AD does not adopt the ``Remarks'' section of EASA AD
2023-0128-E.

(i) No Reporting Requirement

    Although the service information referenced in EASA AD 2023-
0128-E specifies to submit certain information to the manufacturer,
this AD does not include that requirement.

(j) Credit for Previous Actions

    This paragraph provides credit for actions required by paragraph
(g) of this AD, if those actions were performed before the effective
date of this AD using AD 2022-19-08.

(k) Special Flight Permits

    A special flight permit may be issued in accordance with 14 CFR
21.197 and 21.199 to operate the helicopter to a location where the
visual inspection or FPI can be performed, provided no passengers
are onboard. Special flight permits are prohibited if a linear
indication has been detected by an FPI or a visible crack has been
detected on a TRB.

(l) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, International Validation 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 local Flight
Standards District Office, as appropriate. If sending information
directly to the manager of the International Validation Branch, send
it to the attention of the person identified in paragraph (m) 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 local flight standards district office/certificate holding
district office.

(m) Related Information

    For more information about this AD, contact Dan McCully,
Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone<PHONE_NUMBER>; email
[email protected].

(n) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the
incorporation by reference 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.
    (i) European Union Aviation Safety Agency Emergency AD 2023-
0128-E, dated June 26, 2023 (EASA AD 2023-0128-E).
    (ii) [Reserved]
    (3) For EASA AD 2023-0128-E, contact EASA, Konrad-Adenauer-Ufer
3, 50668 Cologne, Germany; telephone +49 221 8999 000; email
[email protected]; internet easa.europa.eu. You may find the EASA
material on the EASA website at ad.easa.europa.eu.
    (4) You may view this service information at the FAA, Office of
the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room
6N-321, Fort Worth, TX 76177. For information on the availability of
this material at the FAA, call<PHONE_NUMBER>. This material may be
found in the AD docket at regulations.gov under Docket No. FAA-2023-
1506.
    (5) You may view this material 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 July 18, 2023.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2023-15714 Filed 7-20-23; 4:15 pm]
BILLING CODE 4910-13-P


[Federal Register: August 17, 2006 (Volume 71, Number 159)]
[Notices]
[Page 47492]
[DOCID:fr17au06-38]

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DEPARTMENT OF ENERGY

Federal Energy Regulatory Commission

[Docket No. CP05-48-005]

Central Kentucky Transmission Company; Notice of Compliance
Filing

August 10, 2006.
    Take notice that on August 3, 2006, Central Kentucky Transmission
Company (Central Kentucky) tendered for filing as part of its FERC Gas
Tariff, Original Volume No. 1, First Revised Sheet No. 6, with a
proposed effective date of September 1, 2006.
    Any person desiring to protest this filing must file in accordance
with Rule 211 of the Commission's Rules of Practice and Procedure (18
CFR 385.211). Protests to this filing will be considered by the
Commission in determining the appropriate action to be taken, but will
not serve to make protestants parties to the proceeding. Such protests
must be filed in accordance with the provisions of Section 154.210 of
the Commission's regulations (18 CFR 154.210). Anyone filing a protest
must serve a copy of that document on all the parties to the
proceeding.
    The Commission encourages electronic submission of protests in lieu
of paper using the ``eFiling'' link at http://www.ferc.gov. Persons

unable to file electronically should submit an original and 14 copies
of the protest to the Federal Energy Regulatory Commission, 888 First
Street, NE., Washington, DC 20426.
    This filing is accessible online at http://www.ferc.gov, using the

``eLibrary'' link and is available for review in the Commission's
Public Reference Room in Washington, DC. There is an ``eSubscription''
link on the Web site that enables subscribers to receive e-mail
notification when a document is added to a subscribed docket(s). For
assistance with any FERC Online service, please e-mail
<EMAIL_ADDRESS>or call<PHONE_NUMBER> (toll free). For

TTY, call<PHONE_NUMBER>.

Magalie R. Salas,
Secretary.
 [FR Doc. E6-13540 Filed 8-16-06; 8:45 am]

BILLING CODE 6717-01-P


[Federal Register Volume 85, Number 155 (Tuesday, August 11, 2020)]
[Notices]
[Page 48515]
[FR Doc No: 2020-17501]

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DEPARTMENT OF ENERGY

Federal Energy Regulatory Commission

[Docket No. ID-6643-002]

Flexon, Robert C.; Notice of Filing

    Take notice that on August 5, 2020, Robert C. Flexon, submitted for
filing, a supplement to the June 11, 2020 application for authority to
hold interlocking positions, pursuant to section 305(b) of the Federal
Power Act, 16 U.S.C. 825d(b), Part 45 of the Federal Energy Regulatory
Commission's Rules of Practice and Procedure, 18 CFR part 45.8 (2019).
    Any person desiring to intervene or to protest this filing must
file in accordance with Rules 211 and 214 of the Commission's Rules of
Practice and Procedure (18 CFR 385.211, 385.214). Protests will be
considered by the Commission in determining the appropriate action to
be taken, but will not serve to make protestants parties to the
proceeding. Any person wishing to become a party must file a notice of
intervention or motion to intervene, as appropriate. Such notices,
motions, or protests must be filed on or before the comment date. On or
before the comment date, it is not necessary to serve motions to
intervene or protests on persons other than the Applicant.
    In addition to publishing the full text of this document in the
Federal Register, the Commission provides all interested persons an
opportunity to view and/or print the contents of this document via the
internet through the Commission's Home Page (http://ferc.gov) using the
``eLibrary'' link. Enter the docket number excluding the last three
digits in the docket number field to access the document. At this time,
the Commission has suspended access to the Commission's Public
Reference Room, due to the proclamation declaring a National Emergency
concerning the Novel Coronavirus Disease (COVID-19), issued by the
President on March 13, 2020. For assistance, contact the Federal Energy
Regulatory Commission at<EMAIL_ADDRESS>or call toll-free,
(886) 208-3676 or TYY,<PHONE_NUMBER>.
    The Commission strongly encourages electronic filings of comments,
protests and interventions in lieu of paper using the ``eFiling'' link
at http://www.ferc.gov. Persons unable to file electronically may mail
similar pleadings to the Federal Energy Regulatory Commission, 888
First Street NE, Washington, DC 20426. Hand delivered submissions in
docketed proceedings should be delivered to Health and Human Services,
12225 Wilkins Avenue, Rockville, Maryland 20852.
    Comment Date: 5:00 p.m. Eastern Time on August 26, 2020.

    Dated: August 5, 2020.
Kimberly D. Bose,
Secretary.
[FR Doc. 2020-17501 Filed 8-10-20; 8:45 am]
BILLING CODE 6717-01-P


[Federal Register Volume 83, Number 23 (Friday, February 2, 2018)]
[Proposed Rules]
[Pages 4865-4866]
[FR Doc No: 2018-02013]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 71

[Docket No. FAA-2017-0223; Airspace Docket No. 17-ANM-9]

Proposed Amendment of Class D and E Airspace; Casper, WY

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: This action proposes to amend controlled airspace at Casper/
Natrona County International Airport, Casper WY. After a biennial
review, the FAA proposes to enlarge Class D airspace; remove Class E
airspace designated as an extension, reduce Class E airspace extending
upward from 700 feet above the surface, and remove Class E airspace
extending upward from 1,200 feet above the surface. Also, this action
would update the airport's name and geographic coordinates for the
associated Class D and E airspace areas to reflect the FAA's current
aeronautical database. These proposed changes would enhance safety and
management of instrument flight rules (IFR) operations at the airport.

DATES: Comments must be received on or before March 19, 2018.

ADDRESSES: Send comments on this proposal to the U.S. Department of
Transportation, Docket Operations, 1200 New Jersey Avenue SE, West
Building Ground Floor, Room W12-140, Washington, DC 20590; telephone:
1(800) 647-5527, or<PHONE_NUMBER>. You must identify FAA Docket No.
FAA-2017-0223; Airspace Docket No. 17-ANM-9, at the beginning of your
comments. You may also submit comments through the internet at http://www.regulations.gov.
    FAA Order 7400.11B, Airspace Designations and Reporting Points, and
subsequent amendments can be viewed online at http://www.faa.gov/air_traffic/publications/. For further information, you can contact the
Airspace Policy Group, Federal Aviation Administration, 800
Independence Avenue SW, Washington, DC 20591; telephone: (202) 267-
8783. The Order is also available for inspection at the National
Archives and Records Administration (NARA). For information on the
availability of FAA Order 7400.11B at NARA, call<PHONE_NUMBER>, or go
to https://www.archives.gov/federal-register/cfr/ibr-locations.html.
    FAA Order 7400.11, Airspace Designations and Reporting Points, is
published yearly and effective on September 15.

FOR FURTHER INFORMATION CONTACT: Tom Clark, Federal Aviation
Administration, Operations Support Group, Western Service Center, 1601
Lind Avenue SW, Renton, WA 98057; telephone<PHONE_NUMBER>.

SUPPLEMENTARY INFORMATION:

Authority for This Rulemaking

    The FAA's authority to issue rules regarding aviation safety is
found in Title 49 of the United States Code. 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. This rulemaking is promulgated under the authority described
in Subtitle VII, Part A, Subpart I, Section 40103. Under that section,
the FAA is charged with prescribing regulations to assign the use of
airspace necessary to ensure the safety of aircraft and the efficient
use of airspace. This regulation is within the scope of that authority
as it would modify Class D and E airspace at Casper/Natrona County
International Airport, Casper, WY, in support of IFR operations at the
airport.

Comments Invited

    Interested parties are invited to participate in this proposed
rulemaking by submitting such written data, views, or arguments, as
they may desire. Comments that provide the factual basis supporting the
views and suggestions presented are particularly helpful in developing
reasoned regulatory decisions on the proposal. Comments are
specifically invited on the overall regulatory, aeronautical, economic,
environmental, and energy-related aspects of the proposal.
    Communications should identify both docket numbers (Docket No. FAA-
2017-0223; Airspace Docket No. 17-ANM-9) and be submitted in triplicate
to DOT Docket Operations (see ADDRESSES section for address and phone
number).
    Persons wishing the FAA to acknowledge receipt of their comments on
this notice must submit with those comments a self-addressed, stamped
postcard on which the following statement is made: ``Comments to Docket
No. FAA-2017-0223/Airspace Docket No. 17-ANM-9.'' The postcard will be
date/time stamped and returned to the commenter.
    All communications received on or before the specified closing date
for comments will be considered before taking action on the proposed
rule. The proposal contained in this notice may be changed in light of
the comments received. A report summarizing each substantive public
contact with FAA personnel concerned with this rulemaking will be filed
in the docket.

Availability of NPRMs

    An electronic copy of this document may be downloaded through the
internet at http://www.regulations.gov. Recently published rulemaking
documents can also be accessed through the FAA's web page at  http://www.faa.gov/air_traffic/publications/airspace_amendments/.
    You may review the public docket containing the proposal, any
comments received, and any final disposition in person in the Dockets
Office (see the ADDRESSES section for the address and phone number)
between 9:00 a.m. and 5:00 p.m., Monday through Friday, except federal
holidays. An informal docket may also be examined between 8:00 a.m. and
4:30 p.m., Monday through Friday, except federal holidays, at the
Northwest Mountain Regional Office of the Federal Aviation
Administration, Air Traffic Organization, Western Service Center,
Operations Support Group, 1601 Lind Avenue SW, Renton, WA 98057.

Availability and Summary of Documents for Incorporation by Reference

    This document proposes to amend FAA Order 7400.11B, Airspace
Designations and Reporting Points, dated August 3, 2017, and effective
September 15, 2017. FAA Order 7400.11B is publicly available as listed
in the ADDRESSES section of this document. FAA Order 7400.11B lists
Class A, B, C, D, and E airspace areas, air traffic service routes, and
reporting points.

The Proposal

    The FAA is proposing an amendment to Title 14 Code of Federal
Regulations (14 CFR) Part 71 by modifying Class D airspace and Class E
surface area airspace at Casper/Natrona County International Airport
(formerly Natrona County International Airport) to within a 4.9-mile
radius (from a 4.3-mile radius) of the airport from the airport
294[deg] bearing clockwise to the airport 193[deg] bearing, and within
a 7-mile radius (from a 4.3-mile radius) of the airport from the
193[deg] bearing clockwise to the airport 294[deg] bearing.
    This proposal also would remove Class E airspace designated as an
extension to Class D or E surface area.

    Additionally, Class E airspace extending upward from 700 feet above
the surface would be reduced to within a 9.5-mile radius of the airport
(from a 24-mile radius) from the airport 248[deg] bearing clockwise to
the airport 294[deg] bearing, and within a 7-mile radius from the
airport 294[deg] bearing clockwise to the airport 004[deg] bearing,
with segments extending to 13.5 miles northeast, 10.4 miles east, 16.9
miles southwest. Also, Class E airspace extending upward from 1,200
feet above the surface would be removed since it is wholly contained
within the larger Casper Class E en route airspace, and duplication is
not needed.
    This proposal would also update the airport's geographic
coordinates in the associated Class D and E airspace to reflect the
FAA's current aeronautical database. Lastly, this action would replace
the outdated term ``Airport/Facility Directory'' with the term ``Chart
Supplement'' in the Class D and associated Class E airspace legal
descriptions. These modifications are necessary for the safety and
management of IFR operations at the airport.
    Class D and Class E airspace designations are published in
paragraph 5000, 6002, 6004, and 6005, respectively, of FAA Order
7400.11B, dated August 3, 2017 and effective September 15, 2017, which
is incorporated by reference in 14 CFR 71.1. The Class D and Class E
airspace designations listed in this document will be published
subsequently in the Order.

Regulatory Notices and Analyses

    The FAA has determined that this proposed regulation only involves
an established body of technical regulations for which frequent and
routine amendments are necessary to keep them operationally current, is
non-controversial and unlikely to result in adverse or negative
comments. It, therefore: (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) does not warrant preparation of a regulatory evaluation
as the anticipated impact is so minimal. Since this is a routine matter
that will only affect air traffic procedures and air navigation, it is
certified that this proposed rule, when promulgated, would not have a
significant economic impact on a substantial number of small entities
under the criteria of the Regulatory Flexibility Act.

Environmental Review

    This proposal will be subject to an environmental analysis in
accordance with FAA Order 1050.1F, ``Environmental Impacts: Policies
and Procedures'' prior to any FAA final regulatory action.

List of Subjects in 14 CFR Part 71

    Airspace, Incorporation by reference, Navigation (air).

The Proposed Amendment

    Accordingly, pursuant to the authority delegated to me, the Federal
Aviation Administration proposes to amend 14 CFR part 71 as follows:

PART 71--DESIGNATION OF CLASS A, B, C, D, AND E AIRSPACE AREAS; AIR
TRAFFIC SERVICE ROUTES; AND REPORTING POINTS

0
1. The authority citation for 14 CFR part 71 continues to read as
follows:

    Authority: 49 U.S.C. 106(f), 106(g); 40103, 40113, 40120; E.O.
10854, 24 FR 9565, 3 CFR, 1959-1963 Comp., p. 389.

Sec.  71.1  [Amended]

0
2. The incorporation by reference in 14 CFR 71.1 of FAA Order 7400.11B,
Airspace Designations and Reporting Points, dated August 3, 2017, and
effective September 15, 2017, is amended as follows:

Paragraph 5000 Class D Airspace.

* * * * *

ANM WY D Casper, WY [Amended]

Casper/Natrona County International Airport, WY
    (Lat. 42[deg]54'21'' N, long. 106[deg]27'49'' W)

    That airspace extending upward from the surface to and including
7,800 feet MSL within a 4.9-mile radius of Casper/Natrona County
International Airport clockwise from the airport 294[deg] bearing to
the airport 193[deg] bearing and within a 7-mile radius of the
airport clockwise from the airport 193[deg] bearing to the airport
294[deg] bearing. This Class D airspace area is effective during the
specific dates and times established in advance by a Notice to
Airmen. The effective date and time will thereafter be continuously
published in the Chart Supplement.

Paragraph 6002 Class E Airspace Designated as Surface Areas.

* * * * *

ANM WY E2 Casper, WY [Amended]

Casper/Natrona County International Airport, WY
    (Lat. 42[deg]54'21'' N, long. 106[deg]27'49'' W)

    That airspace extending upward from the surface within a 4.9-
mile radius of Casper/Natrona County International Airport clockwise
from the airport 294[deg] bearing to the airport 193[deg] bearing
and within a 7-mile radius of the airport clockwise from the airport
193[deg] bearing to the airport 294[deg] bearing. This Class E
airspace area is effective during the specific dates and times
established in advance by a Notice to Airmen. The effective date and
time will thereafter be continuously published in the Chart
Supplement.

Paragraph 6004 Class E Airspace Areas Designated as an Extension to
a Class D or Class E Surface Area

* * * * *

ANM WY E4 Casper, WY [Removed]

Paragraph 6005 Class E Airspace Areas Extending Upward From 700
Feet or More Above the Surface of the Earth.

* * * * *

ANM WY E5 Casper, WY [Amended]

Casper/Natrona County International Airport, WY
    (Lat. 42[deg]54'21'' N, long. 106[deg]27'49'' W)

    That airspace upward from 700 feet above the surface within a
9.5-mile radius of Casper/Natrona County International Airport from
the airport 248[deg] bearing clockwise to the airport 294[deg]
bearing and within a 7-mile radius of the airport from the airport
294[deg] bearing clockwise to the airport 004[deg] bearing and
within 3.9 miles northwest and 4.8 miles southeast of the airport
036[deg] bearing extending from the airport to 13.5 miles northeast
of the airport and within 3.6 miles each side of the airport
088[deg] bearing extending from the airport to 10.4 miles east of
the airport and within 4.1 miles each side of the airport 223[deg]
bearing extending from the airport to 17 miles southwest of the
airport.

    Issued in Seattle, Washington, on January 26, 2018.
Shawn M. Kozica,
Manager, Operations Support Group, Western Service Center.
[FR Doc. 2018-02013 Filed 2-1-18; 8:45 am]
 BILLING CODE 4910-13-P


[Federal Register Volume 83, Number 231 (Friday, November 30, 2018)]
[Notices]
[Page 61634]
[FR Doc No: 2018-25768]

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ENVIRONMENTAL PROTECTION AGENCY

[EPA-HQ-OECA-2014-0085; FRL-9974-64-OEI]

Information Collection Request Submitted to OMB for Review and
Approval; Comment Request; NESHAP for Friction Materials Manufacturing
(Renewal)

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice.

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SUMMARY: The Environmental Protection Agency (EPA) has submitted an
information collection request (ICR)--NESHAP for Friction Materials
Manufacturing (EPA ICR Number 2025.07, OMB Control Number 2060-0481) to
the Office of Management and Budget (OMB) for review and approval in
accordance with the Paperwork Reduction Act. This is a proposed
extension of the ICR, which is currently approved through August 31,
2018. Public comments were requested previously, via the Federal
Register on June 29, 2017 during a 60-day comment period. This notice
allows for an additional 30 days for public comments. A fuller
description of the ICR is given below, including its estimated burden
and cost to the public. An agency may neither conduct nor sponsor, and
a person is not required to respond to, a collection of information
unless it displays a currently valid OMB control number.

DATES: Additional comments may be submitted on or before December 31,
2018.

ADDRESSES: Submit your comments, referencing Docket ID Number EPA-HQ-
OECA-2014-0085, to: (1) EPA online using www.regulations.gov (our
preferred method), or by email to [email protected], or by mail to:
EPA Docket Center, Environmental Protection Agency, Mail Code 28221T,
1200 Pennsylvania Ave. NW, Washington, DC 20460; and (2) OMB via email
to [email protected]. Address comments to OMB Desk Officer
for EPA.
    EPA's policy is that all comments received will be included in the
public docket without change, including any personal information
provided, unless the comment includes profanity, threats, information
claimed to be Confidential Business Information (CBI) or other
information whose disclosure is restricted by statute.

FOR FURTHER INFORMATION CONTACT: Patrick Yellin, Monitoring,
Assistance, and Media Programs Division, Office of Compliance, Mail
Code 2227A, Environmental Protection Agency, 1200 Pennsylvania Ave. NW,
Washington, DC 20460; telephone number:<PHONE_NUMBER>; fax number:
(202) 564-0050; email address: [email protected].

SUPPLEMENTARY INFORMATION: Supporting documents, which explain in
detail the information that the EPA will be collecting, are available
in the public docket for this ICR. The docket can be viewed online at
www.regulations.gov or in person at the EPA Docket Center, WJC West,
Room 3334, 1301 Constitution Ave. NW, Washington, DC. The telephone
number for the Docket Center is<PHONE_NUMBER>. For additional
information about EPA's public docket, visit: http://www.epa.gov/dockets.
    Abstract: Owners and operators of affected facilities are required
to comply with reporting and record keeping requirements for the
general provisions of 40 CFR part 63, subpart A, as well as the
specific requirements at 40 CFR part 63, subpart QQQQQ. This includes
submitting initial notifications, performance tests and periodic
reports and results, and maintaining records of the occurrence and
duration of any startup, shutdown, or malfunction in the operation of
an affected facility, or any period during which the monitoring system
is inoperative. These reports are used by EPA to determine compliance
with the standards.
    Form Numbers: None.
    Respondents/affected entities: Friction materials manufacturing
facilities.
    Respondent's obligation to respond: Mandatory (40 CFR part 63,
subpart QQQQQ).
    Estimated number of respondents: 2 (total).
    Frequency of response: Initially and semiannually.
    Total estimated burden: 659 hours (per year). Burden is defined at
5 CFR 1320.3(b).
    Total estimated cost: $69,700 (per year), which includes $544 in
either annualized capital/start up and/or operation & maintenance
costs.
    Changes in the estimates: There is an adjustment decrease in the
total estimated burden as currently identified in the OMB Inventory of
Approved Burdens. This decrease is not due to any program changes. The
change in the burden occurred due to a decrease in the respondent
universe.

Courtney Kerwin,
Director, Regulatory Support Division.
[FR Doc. 2018-25768 Filed 11-29-18; 8:45 am]
 BILLING CODE 6560-50-P


TO: Jeffrey Cole, RTI International FROM: Clark Allen, RTI International DATE: December 2003 SUBJECT: Mercury Emission Estimates for Coal fired Power Plants The purpose of this memorandum is to explain the basis of the mercury ( Hg) air emission estimates from the coal fired power plant units. These emission estimates are then used to determine the need for additional air emission controls in order for the plant to comply with the regulatory requirements.

Are all coal fired power plant units included in the estimates?

Certain co generation facilities are excluded on the basis of the fraction of power used on site and the capacity of the unit. Coal fired electric utility units of less than 25 MWe capacity are excluded from the scope of the regulation. Other than these excluded units, all coal fired electric utility units are included, as well as units that combust supplemental fuels such as petroleum coke and tire derived fuel ( TDF).

What was calculated?

The total enthalpy ( Btu) of the fuel combusted in the utility unit for the year 1999 was calculated from the reported fuel rate and the reported heat content of the fuel. The total amount of Hg in the fuel that was combusted in the utility unit for the year 1999 was calculated from the reported fuel rate and the reported Hg concentration in that fuel. The plant average Hg content for that type of fuel was assumed for those months without reported Hg fuel concentrations. The emission factor for the utility unit was obtained by identifying a similar type of unit in the test data set. The Hg removal in that similar type of tested unit was used to estimate the Hg control for the utility unit. The emission factor and the total amount of Hg in the fuel was used to estimate the amount of Hg that was discharged from the stack of the utility unit in 1999. The ratio of the pounds of Hg discharged from the stack to the total heat content of the fuel burned in the unit was calculated as the Hg rate, with the units of lb Hg/ TBtu. For the case that a plant had multiple coal fired units, the total Hg rate for all of the plant units were obtained by calculating the total plant Hg ( lb) and the total plant energy ( TBtu). The plant Hg rate was obtained as the ratio of 2 those two totals ( lb/ TBtu). This Hg rate was compared to the MACT regulatory requirement,

and emissions greater than the regulatory requirement were identified.

What was the source of the data?

There were two data sets that were used in this emission estimation procedures:

° reported data. Each coal fired electric utility unit that had a capacity greater than 25 MWe reported 1999 data for coal use and composition for the unit. The data were processed and stored in a master central data base. The software for examining the data base and estimating the air emissions was provided to the public. Comments about the data base were used for correcting and updating this data base.

° test data. A series of 80 emission tests were conducted at coal fired electric utility units. Most of the units that were tested were tested with three independent measurements of Hg removal by the control device. The results of these tests were used to evaluate the performance of different types of air emission controls for the purpose of estimating the amount of Hg removal that occurred in 1999.

How was the Hg removal from existing air emission controls determined?

Emission factors were determined from the test data. The total Hg in the flue gas was measured, and a summation of the Hg was partitioned in three phases ( particulate bound, ionic,

and elemental). The emission factor was based on the fraction of the total Hg that remained in the flue gas after the control device. In the case of multiple air emission controls in series, the fractional removal of Hg by each control was assumed not to be influenced by the other controls.

How was the MACT floor requirements determined for each unit?

First the regulatory requirements were obtained from the MACT floor analysis. These requirements are shown below as MACT floor limits. The estimated Hg rate ( lb/ TBtu) was compared to the regulatory requirements for the specific coal type. If the estimated Hg rate from a unit was greater than the regulatory requirement, then it was assumed that the unit would require additional air emission control to reduce the unit emissions to the regulatory requirements. 3 Regulatory Requirements in this Analysis Fuel Type MACT Floor Limit*

Bituminous 2.0 lb/ TBtu Subbituminous 5.8 lb/ TBtu Lignite 9.2 lb/ TBtu Coal refuse 0.38 lb/ TBtu IGCC ( Coal gas) 19 lb/ TBtu * These limits were determined after applying variability as described in the memorandum titled, MACT Floor Analysis for Coal and Oil Fired Electric Utility Steam Generating Units National Emission Standards for Hazardous Air Pollutants" and then rounding the results to 2 significant digits.

What if a unit burned two types of coal with different MACT floor requirements for each type?

In the case of multiple types of fuels in the same unit at different times, a fuel massweighted average of the regulatory requirement for each fuel type was calculated. The regulatory requirement was this composite weighted average. In the case of combined types of fuels in the same unit at the same time, the heat content of the fuel was used to determine the fraction of the different types of fuel that was combusted. Then, a fuel mass weighted average was used to determine the composite regulatory requirement.

The following heat contents ( BTU/ lb) were used for the fuel types:

° bituminous 12,250 Btu/ lb, ° subbituminous 9,900 Btu/ lb, and ° lignite 7,300 Btu/ lb.

Fuel mixtures with a heat content greater than that of the bituminous specification were assumed to be bituminous.

What additional information was obtained from the data base?

In addition to the calculated quantities, the following information was provided in the report, as obtained from the data base:

° name of the unit ° name of the plant ° type of fuel( s) ° quantity of fuel burned ° type of NO x control ° type of sulfur control ° type of particulate control 4 ° capacity of the unit ° is the unit a cogeneration unit?

How many units should have additional air emission control?

Not all units require additional air emission controls to meet the regulatory requirements.

The following list illustrates the distribution of units that require additional control or changes to existing controls. Units not requiring additional control are also shown.

Regulatory Requirements for Fuels in this Analysis Fuel Type MACT Floor Limit* Need More Control, No. of units** More Control Not Needed, No of units**

Bituminous 2.0 lb/ TBtu 549 152 Subbituminous 5.8 lb/ TBtu 68 168 Lignite 9.2 lb/ TBtu 5 19 Coal Refuse 0.38 lb/ TBtu 3 14 IGCC ( Coal Gas) 19 lb/ TBtu 0 2 Blended Coals Individual Composite*** 94 44 * These limits were determined after applying variability as described in the memorandum titled, MACT Floor Analysis for Coal and Oil Fired Electric Utility Steam Generating Units National Emission Standards for Hazardous Air Pollutants" and then rounding the results to 2 significant digits. ** The total number of coal fired electric utility units in the last two columns of this table total to 1,118 not the industry total of 1,143. This difference is due to 25 units firing no coal in 1999. *** Depending on the proportion of each coal type burned this number would vary. Thus, it is a blended MACT Floor limit.

Are regulatory requirements used for each unit or each plant?

The emission estimates described her are based on each unit in the database. If plant totals are desired, aggregated limits and emissions can be obtained for each plant.

What was the format of the emission estimates?

The calculated values, along with the additional information from the data base, were placed in an electronic spreadsheet. The format for this spreadsheet was designed to facilitate the determination of the cost of additional controls.