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Federal Register / Vol. 86, No. 122 / Tuesday, June 29, 2021 / Proposed Rules
respectively, or within 300 cycles after the effective date of this AD, whichever occurs later, remove the affected part, as applicable, and replace with a part eligible for installation.
ii Reserved h Definition
lotter on DSK11XQN23PROD with PROPOSALS1

1 For the purpose of this AD, an engine shop visit is the induction of an engine into the shop for maintenance involving the separation of pairs of major mating engine case flanges, except for the following, which do not constitute an engine shop visit:
i Separation of engine flanges solely for the purposes of transportation without subsequent maintenance does not constitute an engine shop visit.
ii Separation of engine flanges solely for the purpose of replacing the fan without subsequent maintenance does not constitute an engine shop visit.
2 For the purpose of this AD, a part eligible for installation is:
i For PW1519G, PW1521G, PW1521G3, PW1521GA, PW1524G, PW1524G3, PW1919G, and PW1921G model turbofan engines:
A Any HPT 1st-stage hub with P/N
30G5701 with 4,700 CSN or fewer, or with a P/N not listed in this AD.
B Any HPT rotor 1st-stage blade retaining plate with P/N 30G1692 with 4,700 CSN or fewer, or with a P/N not listed in this AD.
ii For PW1525G and PW1525G3 model turbofan engines:
A Any HPT 1st-stage hub with P/N
30G5701 with 2,800 CSN or fewer, or with a P/N not listed in this AD.
B Any HPT rotor 1st-stage blade retaining plate with P/N 30G1692 with 2,800 CSN or fewer, or with a P/N not listed in this AD.
iii For PW1922G, PW1923G, and PW1923GA model turbofan engines:
A Any HPT 1st-stage hub with P/N
30G5701 with 3,000 CSN or fewer, or with a P/N not listed in this AD.
B Any HPT rotor 1st-stage blade retaining plate with P/N 30G1692 with 3,000 CSN or fewer, or with a P/N not listed in this AD.
i Alternative Methods of Compliance AMOCs 1 The Manager, ECO 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 Related Information. You may email your request to: ANE-AD-AMOC@
faa.gov.
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.
j Related Information 1 For more information about this AD, contact Mark Taylor, Aviation Safety Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781

VerDate Sep<11>2014

16:40 Jun 28, 2021

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2387229; fax: 781 2387199; email:
Mark.Taylor@faa.gov.
2 For service information identified in this AD, contact Pratt & Whitney, 400 Main Street, East Hartford, CT 06118; phone: 800
5650140; fax: 860 5655442; email:
help24@pw.utc.com; website: https
fleetcare.pw.utc.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 781 2387759.

DEPARTMENT OF TRANSPORTATION

online at https 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 2678783. The Order is also available for inspection at the National Archives and Records Administration NARA. For information on the availability of FAA
Order 7400.11E at NARA, email fedreg.legal@nara.gov or go to https
www.archives.gov/federal-register/cfr/
ibr-locations.html.
FOR FURTHER INFORMATION CONTACT:
Jeffrey Claypool, Federal Aviation Administration, Operations Support Group, Central Service Center, 10101
Hillwood Parkway, Fort Worth, TX
76177; telephone 817 2225711.
SUPPLEMENTARY INFORMATION:

Federal Aviation Administration
Authority for This Rulemaking
Issued on June 23, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202113709 Filed 62821; 8:45 am BILLING CODE 491013P

14 CFR Part 71
Docket No. FAA20210518; Airspace Docket No. 21ASW12
RIN 2120AA66

Proposed Amendment Class E
Airspace; Oklahoma City, OK
Federal Aviation Administration FAA, DOT.
ACTION: Notice of proposed rulemaking NPRM.
AGENCY:

This action proposes to amend the Class E airspace at Sundance Airport, Oklahoma City, OK. The FAA
is proposing this action as the result of an airspace review due to the decommissioning of the Sundance Localizer LOC.
DATES: Comments must be received on or before August 13, 2021.
ADDRESSES: Send comments on this proposal to the U.S. Department of Transportation, Docket Operations, West Building Ground Floor, Room W12140, 1200 New Jersey Avenue SE, Washington, DC 20590; telephone 202
3669826, or 800 6475527. You must identify FAA Docket No. FAA2021
0518/Airspace Docket No. 21ASW12, at the beginning of your comments. You may also submit comments through the internet at https 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.
FAA Order 7400.11E, Airspace Designations and Reporting Points, and subsequent amendments can be viewed SUMMARY:

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The FAAs 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 agencys 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 amend the Class E airspace extending upward from 700 feet above the surface at Sundance Airport, Oklahoma City, OK, to support instrument flight rule operations at this 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 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
E:FRFM29JNP1.SGM

29JNP1