[Federal Register Volume 77, Number 231 (Friday, November 30, 2012)]
[Proposed Rules]
[Pages 71367-71368]
[FR Doc No: 2012-29002]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 71

[Docket No. FAA-2012-0771; Airspace Docket No. 12-ASW-7]

Proposed Establishment of Class E Airspace; Round Mountain, TX

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: This action proposes to establish Class E airspace at Round
Mountain, TX. Controlled airspace is necessary to accommodate new
Standard Instrument Approach Procedures (SIAPs) at West Ranch Airport.
The FAA is taking this action to enhance the safety and management of
Instrument Flight Rules (IFR) operations for SIAPs at the airport.

DATES: 0901 UTC. Comments must be received on or before January 14,
2013.

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 20590-0001. You
must identify the docket number FAA-2012-0771/Airspace Docket No. 12-
ASW-7, at the beginning of your comments. You may also submit comments
through the Internet at http://www.regulations.gov. You may review the
public docket containing the proposal, any comments received, and any
final disposition in person in the Dockets Office between 9:00 a.m. and
5:00 p.m., Monday through Friday, except Federal holidays. The Docket
Office (telephone 1-800-647-5527) is on the ground floor of the
building at the above address.

FOR FURTHER INFORMATION CONTACT: Scott Enander, Central Service Center,
Operations Support Group, Federal Aviation Administration, Southwest
Region, 2601 Meacham Blvd., Fort Worth, TX 76137; telephone: (817) 321-
7716.

SUPPLEMENTARY INFORMATION:

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 and be submitted in
triplicate to the address listed above. Commenters 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-2012-0771/
Airspace Docket No. 12-ASW-7.'' The postcard will be date/time stamped
and returned to the commenter.

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/airports_airtraffic/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 ADDRESSES section for 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 during normal
business hours at the office of the Central Service Center, 2601
Meacham Blvd., Fort Worth, TX 76137.
    Persons interested in being placed on a mailing list for future
NPRMs should contact the FAA's Office of Rulemaking<PHONE_NUMBER>, to
request a copy of Advisory Circular No. 11-2A, Notice of Proposed
Rulemaking Distribution System, which describes the application
procedure.

The Proposal

    This action proposes to amend Title 14, Code of Federal Regulations
(14 CFR), part 71 by establishing Class E airspace extending upward
from 700 feet above the surface for departing aircraft under instrument
flight rules, and arriving aircraft utilizing new standard instrument
approach procedures at West Ranch Airport, Round Mountain, TX.
Controlled airspace is needed for the safety and management of IFR
operations at the airport.
    Class E airspace areas are published in Paragraph 6005 of FAA Order
7400.9W, dated August 8, 2012 and effective September 15, 2012, which
is incorporated by reference in 14 CFR 71.1. The Class E airspace
designation listed in this document would be published subsequently in
the Order.
    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.
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 rule, when promulgated, will not have a significant
economic impact on a substantial number of small entities under the
criteria of the Regulatory Flexibility Act.
    The FAA's authority to issue rules regarding aviation safety is
found in Title 49 of the U.S. Code. Subtitle 1, 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 establish controlled airspace at West Ranch Airport, Round
Mountain, TX.

Environmental Review

    This proposal will be subject to an environmental analysis in
accordance with FAA Order 1050.1E, ``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

    In consideration of the foregoing, 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

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

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

Sec.  71.1  [Amended]

    2. The incorporation by reference in 14 CFR 71.1 of FAA Order
7400.9W, Airspace Designations and Reporting Points, dated August 8,
2012, and effective September 15, 2012, is amended as follows:

Paragraph 6005 Class E Airspace areas extending upward from 700
feet or more above the surface of the earth.

* * * * *

ASW TX E5 Round Mountain, TX [New]

Round Mountain, West Ranch Airport, TX
    (lat. 30[deg]27'23'' N., long. 98[deg]29'23'' W.)

    That airspace extending upward from 700 feet above the surface
within a 7.4-mile radius of West Ranch Airport, and within 2 miles
each side of the 308[deg] bearing from the airport extending from
the 7.4-mile radius to 11.1 miles northwest of the airport, and
within 2 miles each side of the 128[deg] bearing from the airport
extending from the 7.4-mile radius to 10.9 miles southeast of the
airport.

    Issued in Fort Worth, TX, on November 1, 2012.
David P. Medina,
Manager, Operations Support Group, ATO Central Service Center.
[FR Doc. 2012-29002 Filed 11-29-12; 8:45 am]
BILLING CODE 4901-13-P


[Federal Register Volume 78, Number 189 (Monday, September 30, 2013)]
[Notices]
[Pages 59921-59922]
[FR Doc No: 2013-23720]

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DEPARTMENT OF ENERGY

Federal Energy Regulatory Commission

Combined Notice of Filings 1

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

    Docket Numbers: EC13-153-000.
    Applicants: Buffalo Dunes Wind Project, LLC.
    Description: Application for Authorization under Section 203 of the
Federal Power Act, Request for Expedited Consideration and Confidential
Treatment of Buffalo Dunes Wind Project, LLC.
    Filed Date: 9/20/13.
    Accession Number: 20130920-5158.
    Comments Due: 5 p.m. e.t. 10/11/13.

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

    Docket Numbers: EG13-59-000.
    Applicants: Mountain View Solar, LLC.
    Description: Notice of Self-Certification of Exempt Wholesale
Generator Status of Mountain View Solar, LLC.
    Filed Date: 9/20/13.
    Accession Number: 20130920-5119.
    Comments Due: 5 p.m. e.t. 10/11/13.

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

    Docket Numbers: ER10-2331-022; ER10-2325-018; ER10-2326-021; ER10-
2327-022; ER10-2330-021.
    Applicants: J.P. Morgan Ventures Energy Corporation, BE Louisiana
LLC, Cedar Brakes I, L.L.C., Cedar Brakes II, L.L.C., Utility Contract
Funding, L.L.C.
    Description: JPMorgn Sellers Notice of Non-Material Change In
Status re: Noble Great Plains.
    Filed Date: 9/20/13.
    Accession Number: 20130920-5160.
    Comments Due: 5 p.m. e.t. 10/11/13.

    Docket Numbers: ER10-3081-005.
    Applicants: Equilon Enterprises LLC.
    Description: Equilon Enterprises LLC's Updated Market Power
Analysis for the Southwest Region.
    Filed Date: 9/20/13.
    Accession Number: 20130920-5153.
    Comments Due: 5 p.m. e.t. 11/19/13.

    Docket Numbers: ER13-96-002.
    Applicants: Black Hills Power, Inc.
    Description: Order No. 1000 Compliance Filing to be effective 12/
31/9998.
    Filed Date: 9/20/13.
    Accession Number: 20130920-5121.
    Comments Due: 5 p.m. e.t. 10/21/13.

    Docket Numbers: ER13-97-002.
    Applicants: Black Hills/Colorado Electric Utility Co.
    Description: Order No. 1000 Compliance Filing to be effective 12/
31/9998.
    Filed Date: 9/20/13.
    Accession Number: 20130920-5114.
    Comments Due: 5 p.m. e.t. 10/21/13.

    Docket Numbers: ER13-105-002.
    Applicants: NV Energy, Inc.
    Description: OATT Order No. 1000 Second Compliance Filing to be
effective 12/31/9998.
    Filed Date: 9/20/13.
    Accession Number: 20130920-5122.
    Comments Due: 5 p.m. e.t. 10/21/13.

    Docket Numbers: ER13-120-002.
    Applicants: Cheyenne Light, Fuel and Power Company.
    Description: Order No. 1000 Compliance Filing to be effective 12/
31/9998.
    Filed Date: 9/20/13.
    Accession Number: 20130920-5129.
    Comments Due: 5 p.m. e.t. 10/21/13.

    Docket Numbers: ER13-2409-000.
    Applicants: Buffalo Dunes Wind Project, LLC.
    Description: Buffalo Dunes Wind Project, LLC MBR Tariff to be
effective 10/1/2013.
    Filed Date: 9/20/13.
    Accession Number: 20130920-5095.
    Comments Due: 5 p.m. e.t. 10/11/13.

    Docket Numbers: ER13-2410-000.
    Applicants: PPL Electric Utilities Corporation, PJM
Interconnection, L.L.C.
    Description: PPL Electric submits revisions to PJM OATT Attachment
H-8G to be effective 6/1/2015.
    Filed Date: 9/20/13.
    Accession Number: 20130920-5101.
    Comments Due: 5 p.m. e.t. 10/11/13.

    Docket Numbers: ER13-2411-000.
    Applicants: Sierra Pacific Power Company.
    Description: Rate Schedule No. 27--Annual BPA-GTA Update 2013 to be
effective 10/31/2013.
    Filed Date: 9/20/13.
    Accession Number: 20130920-5102.
    Comments Due: 5 p.m. e.t. 10/11/13.

    Docket Numbers: ER13-2412-000.
    Applicants: Trans Bay Cable LLC.
    Description: Submission of Revisions to Appendix I of the Trans Bay
Transmission Owner Tariff to be effective 11/23/2013.
    Filed Date: 9/20/13.
    Accession Number: 20130920-5103.
    Comments Due: 5 p.m. e.t. 10/11/13.

    Docket Numbers: ER13-2413-000.
    Applicants: PJM Interconnection, L.L.C.
    Description: Revisions to the OATT & OA re Wind Resource Lost
Opportunity Cost Eligibility to be effective 11/19/2013.
    Filed Date: 9/20/13.
    Accession Number: 20130920-5112.
    Comments Due: 5 p.m. e.t. 10/11/13.

    Docket Numbers: ER13-2414-000.
    Applicants: Mammoth Three LLC.
    Description: Petition of Mammoth Three LLC for Approval of Initial
Market-Based Rate Tariff to be effective 11/15/2013.
    Filed Date: 9/20/13.
    Accession Number: 20130920-5120.
    Comments Due: 5 p.m. e.t. 10/11/13.

    Docket Numbers: ER13-2415-000.
    Applicants: Midcontinent Independent System Operator, Inc.
    Description: 09-20-2013 MCP-OTP T-L IA to be effective 8/23/2013.
    Filed Date: 9/20/13.
    Accession Number: 20130920-5128.
    Comments Due: 5 p.m. e.t. 10/11/13.

    Take notice that the Commission received the following foreign
utility company status filings:

    Docket Numbers: FC13-13-000.
    Applicants: Summerhaven Wind, LP.
    Description: Notification of Self-Certification of Foreign Utility
Company Status of Summerhaven Wind, LP.
    Filed Date: 9/20/13.
    Accession Number: 20130920-5092.
    Comments Due: 5 p.m. e.t. 10/11/13.

    Take notice that the Commission received the following qualifying
facility filings:

    Docket Numbers: QF13-679-000.
    Applicants: UMM Energy Partners, LLC.
    Description: Form 556 of UMM Energy Partners, LLC.
    Filed Date: 9/19/13.
    Accession Number: 20130919-5042.
    Comment Date: None Applicable.

    Take notice that the Commission received the following electric
reliability filings

    Docket Numbers: RD13-12-000.
    Applicants: North American Electric Reliability Corp, Texas
Reliability Entity, Inc.
    Description: Joint Petition of the North American Electric
Reliability Corporation and Texas Reliability Entity, Inc., for
Approval of Proposed Regional Reliability Standard BAL-001-TRE-01.
    Filed Date: 09/18/2013.
    Accession Number: 20130918-5095.
    Comment Date: 5 p.m. e.t. 10/15/13.

    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: September 23, 2013.
Nathaniel J. Davis, Sr.,
Deputy Secretary.
[FR Doc. 2013-23720 Filed 9-27-13; 8:45 am]
BILLING CODE 6717-01-P


[Federal Register: August 18, 2010 (Volume 75, Number 159)]
[Notices]
[Page 51030-51031]
[DOCID:fr18au10-76]

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DEPARTMENT OF ENERGY

Federal Energy Regulatory Commission

[Docket No. CP10-479-000]

Columbia Gas Transmission, LLC; Notice of Application

August 12, 2010.
    Take notice that on August 5, 2010, Columbia Gas Transmission
Corporation (Columbia), 5151 San Felipe, Suite 2500, Houston, Texas
77056, filed in Docket No. CP10-479-000 an application, pursuant to
section 7(b) of the Natural Gas Act (NGA), for permission and approval
to abandon by transfer and by sale certain natural gas facilities
located in Pennsylvania and West Virginia and to abandon the services
being provided through these facilities. Columbia also requests that
the Commission find certain facilities, when sold, as exempt from the
Commission's jurisdiction pursuant to section 1(c) of the NGA, as more
fully set forth in the application which is open to public inspection.
The filing may also be viewed on the Web at 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 at<EMAIL_ADDRESS>or call toll-
free,<PHONE_NUMBER> or TYY,<PHONE_NUMBER>.
    Columbia proposes to: (1) Abandon by transfer to NiSource Midstream
Services, LLC (NMS), a non-jurisdictional affiliate of Columbia, on its
Line 1528 approximately 3.8 miles of 16-inch diameter pipeline and
appurtenances in Marshall County, West Virginia, and Greene County,
Pennsylvania, at their net book value of $2,700,000; (2) transfer
measurement facilities in Marshall County to NMS; (3) abandon by sale
to Texas Eastern Transmission, L.P. (Texas Eastern), approximately 2
miles of 16-inch pipeline on Columbia's Line 1528 in Marshall County
and Greene County; and (4) seek a determination that NMS' acquired
segment of Line 1528 would be part of the upstream gathering system and
exempt from the Commission's jurisdiction under the NGA. Columbia
states that no construction or removal of facilities would be required
in this proposal.
    Any questions regarding this application should be directed to
Frederic J. George, Senior Counsel, Columbia Gas Transmission, LLC,
P.O. Box 1273, Charleston, West Virginia 25325-1273, or via telephone
at<PHONE_NUMBER> and facsimile number<PHONE_NUMBER>.
    There are two ways to become involved in the Commission's review of
this project. First, any person wishing to obtain legal status by
becoming a party to the proceedings for this project should, on or
before the comment date stated below, file with the Federal Energy
Regulatory Commission, 888 First Street, NE., Washington, DC 20426, a
motion to intervene in accordance with the requirements of the
Commission's Rules of Practice and Procedure (18 CFR 385.214 or
385.211) and the Regulations under the NGA (18 CFR 157.10). A person
obtaining party status will be placed on the service list maintained by
the Secretary of the Commission and will receive copies of all
documents filed by the applicant and by all other parties. A party must
submit seven copies of filings made with the Commission and must mail a
copy to the applicant and to every other party in the proceeding. Only
parties to the proceeding can ask for court review of Commission orders
in the proceeding.
    However, a person does not have to intervene in order to have
comments considered. The second way to participate is by filing with
the Secretary of the Commission, as soon as possible, an original and
two copies of comments in support of or in opposition to this project.
The Commission will consider these comments in determining the
appropriate action to be taken, but the filing of a comment alone will
not serve to make the filer a party to the proceeding. The Commission's
rules require that persons filing comments in opposition to the project
provide copies of their protests only to the party or parties directly
involved in the protest.
    Persons who wish to comment only on the environmental review of
this project should submit an original and two copies of their comments
to the Secretary of the Commission. Environmental commenters will be
placed on the Commission's environmental mailing list, will receive
copies of the environmental documents, and will be notified of meetings
associated with the Commission's environmental review process.

Environmental commenters will not be required to serve copies of filed
documents on all other parties. However, the non-party commenters will
not receive copies of all documents filed by other parties or issued by
the Commission (except for the mailing of environmental documents
issued by the Commission) and will not have the right to seek court
review of the Commission's final order.
    The Commission strongly encourages electronic filings of comments,
protests and interventions via the Internet in lieu of paper. See, 18
CFR 385.2001(a)(1)(iii) and the instructions on the Commission's Web
site (http://www.ferc.gov) under the ``e-Filing'' link.
    Comment Date: September 2, 2010.

Kimberly D. Bose,
Secretary.
[FR Doc. 2010-20455 Filed 8-17-10; 8:45 am]
BILLING CODE 6717-01-P


[Federal Register Volume 85, Number 155 (Tuesday, August 11, 2020)]
[Proposed Rules]
[Pages 48482-48485]
[FR Doc No: 2020-17389]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2020-0687; Project Identifier AD-2020-00571-E]
RIN 2120-AA64

Airworthiness Directives; Rolls-Royce Corporation (Type
Certificate Previously Held by Allison Engine Company) Turboprop
Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for all Rolls-Royce Corporation (RRC) AE 2100A, AE 2100D2, AE 2100D2A,
and AE 2100P model turboprop engines. This proposed AD was prompted by
a report of a propeller gearbox (PGB) development test conducted by the
manufacturer, in which high vibration occurred due to a fatigue crack
that initiated in the PGB shaft and carrier assembly. This proposed AD
would require assignment of usage hours to the PGB shaft and carrier
assembly at the next engine shop visit and replacement of PGB shaft and
carrier assemblies prior to exceeding the new life limits established
by the manufacturer. The FAA is proposing this AD to address the unsafe
condition on these products.

DATES: The FAA must receive comments on this proposed AD by September
25, 2020.

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 https://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: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this NPRM, contact Rolls-
Royce Corporation, 450 South Meridian Street, Mail Code NB-01-06,
exception occurred on : 2020-17389.htm
exception occurred on : 2020-17389.htm
Indianapolis, IN 46225; phone:<PHONE_NUMBER>; email: royce.com">[email protected]royce.com; internet: www.rolls-royce.com. You may view this service
information at the FAA, Airworthiness Products Section, Operational
Safety Branch, 1200 District Avenue, Burlington, MA 01803. For
information on the availability of this material at the FAA, call 781-
238-7759.

Examining the AD Docket

    You may examine the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2020-
0687; 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 NPRM, 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: Kyri Zaroyiannis, Aerospace Engineer,
Chicago ACO Branch, FAA, 2300 East Devon Avenue, Des Plaines, IL 60018;
phone:<PHONE_NUMBER>; fax:<PHONE_NUMBER>; email:
<EMAIL_ADDRESS>
SUPPLEMENTARY INFORMATION:

Comments Invited

    The FAA invites you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under the ADDRESSES section. Include ``Docket No. FAA-2020-0687;
Project Identifier AD-2020-00571-E'' at the beginning of your comments.
The most helpful comments reference a specific portion of the proposal,
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 NPRM because of those comments.
    Except for Confidential Business Information 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
https://www.regulations.gov, including any personal information you
provide. The agency will also post a report summarizing each
substantive verbal contact received about this proposal.

Confidential Business Information

    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 NPRM 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 NPRM, 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 NPRM. Submissions containing
CBI should be sent to Kyri Zaroyiannis, Aerospace Engineer, Chicago ACO
Branch, FAA, 2300 East Devon Avenue, Des Plaines, IL 60018. Any
commentary that the FAA receives which is not specifically designated
as CBI will be placed in the public docket for this rulemaking.

Background

    The FAA was informed by the manufacturer that a PGB development
test was stopped due to high vibration that was found to have been
caused by a fatigue crack that initiated in PGB shaft and carrier
assembly. The fatigue crack initiated in a broach slot of the PGB
shaft. The PGB shaft and carrier

assembly has not previously been a life limited part. After further
stress and life analyses, the manufacturer identified the need to
declare life limits for all PGB shaft and carrier assemblies. The
manufacturer also determined the need to assign usage hours to PGB
shaft and carrier assemblies that already have time in service. This AD
requires assignment of usage hours to these PGB shaft and carrier
assemblies and requires removal of these parts prior to exceeding the
new life limits established by the manufacturer. This condition, if not
addressed, could result in loss of the propeller, damage to the engine,
and damage to the airplane.

FAA's Determination

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

Service Information Incorporated by Reference Under 1 CFR Part 51

    The FAA reviewed RRC Alert Service Bulletin (ASB) AE 2100A-A-72-
322/AE 2100P-A-72-047, Revision 1 (single document), dated May 11,
2018, and RRC ASB AE 2100D2-A-72-111/AE 2100D3-A-72-313/AE 2100J-A-72-
111, Revision 1 (single document), dated May 28, 2018. RRC ASB AE
2100A-A-72-322/AE 2100P-A-72-047 describes procedures for assigning
usage hours to the PGB shaft and carrier assemblies on RRC AE 2100A and
AE 2100P model engines. RRC ASB AE 2100D2-A-72-111/AE 2100D3-A-72-313/
AE 2100J-A-72-111 describes procedures for verifying the PGB shaft and
carrier assembly serial numbers and assigning usage hours to the PGB
shaft and carrier assemblies on RRC AE 2100D2 and AE 2100D2A model
engines. 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.

Other Related Service Information

    The FAA reviewed Task 05-10-00-800-801 of RRC AE 2100A Engine
Maintenance Manual (MM) CSP31005, Revision 57, dated August 15, 2019,
and Task 05-12-11-800-802 of RRC AE 2100A Engine MM CSP31005, Revision
57, dated August 15, 2019. Task 05-10-00-800-801 of RRC AE 2100A Engine
MM provides information for determining the usage hours and engine
cycles for each life-limited part on RRC AE 2100A model engines. Task
05-12-11-800-802 of RRC AE 2100A Engine MM specifies the PGB shaft and
carrier assembly life limits.
    The FAA reviewed Task 05-11-00-800-801 of RRC AE 2100D2 and AE
2100D2A Engine MM CSP34081, Revision 64, dated June 1, 2020, and Task
05-12-11-800-802 of RRC AE 2100D2 and AE 2100D2A Engine MM CSP34081,
Revision 64, dated June 1, 2020. Task 05-11-00-800-801 of RRC AE 2100D2
and AE 2100D2A Engine MM provides information for determining the usage
hours and engine cycles for each life-limited part on RRC AE 2100D2 and
AE 2100D2A model engines. Task 05-12-11-800-802 of RRC AE 2100D2 and AE
2100D2A Engine MM specifies the PGB shaft and carrier assembly life
limits.
    The FAA reviewed Task 05-10-00-800-801 of RRC AE 2100P Engine MM
CSP31015, Revision 15, dated May 15, 2018, and Task 05-12-11-800-802 of
RRC AE 2100P Engine MM CSP31015, Revision 15, dated May 15, 2018. Task
05-10-00-800-801 of RRC AE 2100P Engine MM provides information for
determining the usage hours and engine cycles for each life-limited
part on RRC AE 2100P model engines. Task 05-12-11-800-802 of RRC AE
2100P Engine MM specifies the PGB shaft and carrier assembly life
limits.

Proposed AD Requirements in This NPRM

    This proposed AD would require assignment of usage hours to the PGB
shaft and carrier assembly at the next engine shop visit and
replacement of PGB shaft and carrier assemblies prior to exceeding the
new life limits established by the manufacturer.

Differences Between This Proposed AD and the Service Information

    RRC ASB AE 2100D2-A-72-111/AE 2100D3-A-72-313/AE 2100J-A-72-111,
Revision 1 (single document), includes RRC AE 2100J model turboprop
engines with PGB shaft and carrier assemblies, with part numbers
23088595 and 23089419 installed, in its applicability. This proposed AD
does not. The FAA determined that the PGB shaft and carrier assemblies
for these model engines have already been removed for rework and
therefore this proposed AD does not apply to them.

Costs of Compliance

    The FAA estimates that this AD, as proposed, would affect 18
engines installed on airplanes of U.S. registry.
    The FAA estimates the following costs to comply with this proposed
AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                Cost per      Cost on U.S.
                Action                         Labor cost           Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
Assign usage hours to PGB shaft and     3 work-hours x $85 per                $0            $255          $4,590
 carrier assembly.                       hour = $255.
Remove and replace PGB shaft and        15 work-hours x $85 per           49,952          51,227         922,086
 carrier assembly.                       hour = $1,275.
----------------------------------------------------------------------------------------------------------------

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

    The FAA 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 this proposed
regulation:
    (1) Is not a ``significant regulatory action'' under Executive
Order 12866,
    (2) Would not affect intrastate aviation in Alaska, and
    (3) Would not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

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

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 adding the following new airworthiness
directive (AD):

Rolls-Royce Corporation (Type Certificate previously held by Allison
Engine Company): Docket No. FAA-2020-0687; Project Identifier AD-
2020-00571-E.

(a) Comments Due Date

    The FAA must receive comments by September 25, 2020.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all Rolls-Royce Corporation (RRC) (Type
Certificate previously held by Allison Engine Company) AE 2100A, AE
2100D2, AE 2100D2A, and AE 2100P model turboprop engines.

(d) Subject

    Joint Aircraft System Component (JASC) Code 7210, Turbine Engine
Reduction Gear.

(e) Unsafe Condition

    This AD was prompted by a report of a propeller gearbox (PGB)
development test in which high vibration occurred due to a fatigue
crack that initiated in the propeller shaft. The FAA is issuing this
AD to prevent loss of the propeller. The unsafe condition, if not
addressed, could result in damage to the engine and damage to the
airplane.

(f) Compliance

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

(g) Required Actions

    (1) No later than the next shop visit for the engine with the
PGB, or the next shop visit for the PGB only, whichever shop visit
occurs first after the effective date of this AD, assign usage hours
to the installed PGB shaft and carrier assembly using RRC Alert
Service Bulletin (ASB) AE 2100A-A-72-322/AE 2100P-A-72-047, Revision
1 (single document), dated May 11, 2018, or RRC ASB AE 2100D2-A-72-
111/AE 2100D3-A-72-313/AE 2100J-A-72-111, Revision 1 (single
document), dated May 28, 2018.
    (2) After the effective date of this AD, before exceeding the
life limit (usage hours) specified in Table 1 to paragraph (g)(2)
(``Table 1'') of this AD, remove the PGB shaft and carrier assembly,
identified by part numbers (P/Ns) in Table 1, from service and
replace with a part eligible for installation.
[GRAPHIC] [TIFF OMITTED] TP11AU20.000

(h) No Reporting Requirement

    The reporting requirements in RRC ASB AE 2100A-A-72-322/AE
2100P-A-72-047, Revision 1 (single document), dated May 11, 2018,
and RRC ASB AE 2100D2-A-72-111/AE 2100D3-A-72-313/AE 2100J-A-72-111,
Revision 1 (single document), dated May 28, 2018, are not required
by this AD.

(i) Credit for Previous Actions

    You may take credit for assigning the usage hours required by
paragraph (g) of this AD if you performed the action before the
effective date of this AD using RRC ASB AE 2100A-A-72-322/AE 2100P-
A-72-047, original issue (single document), dated January 15, 2018,
or RR AE 2100D2-A-72-111/AE 2100D3-A-72-313/AE 2100J-A-72-111,
original issue (single document), dated January 15, 2018.

(j) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Chicago 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 local Flight Standards District
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 (k)(1).
    (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.

(k) Related Information

    (1) For more information about this AD, contact Kyri
Zaroyiannis, Aerospace Engineer, Chicago ACO Branch, FAA, 2300 East
Devon Avenue, Des Plaines, IL 60018; phone:<PHONE_NUMBER>; fax: 847-
294-7834; email<EMAIL_ADDRESS>

    (2) For service information identified in this AD, contact
Rolls-Royce Corporation, 450 South Meridian Street, Mail Code NB-01-
06, Indianapolis, IN 46225; phone:<PHONE_NUMBER>; email:
exception occurred on : 2020-17389.htm
exception occurred on : 2020-17389.htm
royce.com">[email protected]royce.com; internet: www.rolls-royce.com. You may
view this referenced service information at the FAA, Airworthiness
Products Section, Operational Safety Branch, 1200 District Avenue,
Burlington, MA 01803. For information on the availability of this
material at the FAA, call<PHONE_NUMBER>.

    Issued on August 5, 2020.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2020-17389 Filed 8-10-20; 8:45 am]
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