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respectively, or within 300 cycles after the 238–7229; fax: (781) 238–7199; email: online at https://www.faa.gov/air_ effective date of this AD, whichever occurs [email protected]. traffic/publications/. For further later, remove the affected part, as applicable, (2) For service information identified in information, you can contact the and replace with a part eligible for this AD, contact Pratt & Whitney, 400 Main Airspace Policy Group, Federal Aviation Street, East Hartford, CT 06118; phone: (800) installation. Administration, 800 Independence (ii) [Reserved] 565–0140; fax: (860) 565–5442; email: [email protected]; website: https:// Avenue SW, Washington, DC 20591; (h) Definition fleetcare.pw.utc.com. You may view this telephone: (202) 267–8783. The Order is (1) For the purpose of this AD, an ‘‘engine referenced service information at the FAA, also available for inspection at the shop visit’’ is the induction of an engine into Airworthiness Products Section, Operational National Archives and Records the shop for maintenance involving the Safety Branch, 1200 District Avenue, Administration (NARA). For separation of pairs of major mating engine Burlington, MA 01803. For information on information on the availability of FAA case flanges, except for the following, which the availability of this material at the FAA, Order 7400.11E at NARA, email do not constitute an engine shop visit: call (781) 238–7759. [email protected] or go to https:// (i) Separation of engine flanges solely for Issued on June 23, 2021. the purposes of transportation without www.archives.gov/federal-register/cfr/ subsequent maintenance does not constitute Lance T. Gant, ibr-locations.html. an engine shop visit. Director, Compliance & Airworthiness FOR FURTHER INFORMATION CONTACT: (ii) Separation of engine flanges solely for Division, Aircraft Certification Service. Jeffrey Claypool, Federal Aviation the purpose of replacing the fan without [FR Doc. 2021–13709 Filed 6–28–21; 8:45 am] Administration, Operations Support subsequent maintenance does not constitute BILLING CODE 4910–13–P Group, Central Service Center, 10101 an engine shop visit. Hillwood Parkway, Fort Worth, TX (2) For the purpose of this AD, a ‘‘part 76177; telephone (817) 222–5711. eligible for installation’’ is: DEPARTMENT OF TRANSPORTATION (i) For PW1519G, PW1521G, PW1521G–3, SUPPLEMENTARY INFORMATION: PW1521GA, PW1524G, PW1524G–3, Federal Aviation Administration PW1919G, and PW1921G model turbofan Authority for This Rulemaking engines: The FAA’s authority to issue rules 14 CFR Part 71 (A) Any HPT 1st-stage hub with P/N regarding aviation safety is found in 30G5701 with 4,700 CSN or fewer, or with [Docket No. FAA–2021–0518; Airspace Title 49 of the United States Code. a P/N not listed in this AD. Docket No. 21–ASW–12] Subtitle I, Section 106 describes the (B) Any HPT rotor 1st-stage blade retaining plate with P/N 30G1692 with 4,700 CSN or RIN 2120–AA66 authority of the FAA Administrator. fewer, or with a P/N not listed in this AD. Subtitle VII, Aviation Programs, (ii) For PW1525G and PW1525G–3 model Proposed Amendment Class E describes in more detail the scope of the turbofan engines: Airspace; Oklahoma City, OK agency’s authority. This rulemaking is (A) Any HPT 1st-stage hub with P/N promulgated under the authority 30G5701 with 2,800 CSN or fewer, or with AGENCY: Federal Aviation described in Subtitle VII, Part A, a P/N not listed in this AD. Administration (FAA), DOT. Subpart I, Section 40103. Under that (B) Any HPT rotor 1st-stage blade retaining ACTION: Notice of proposed rulemaking section, the FAA is charged with plate with P/N 30G1692 with 2,800 CSN or (NPRM). prescribing regulations to assign the use fewer, or with a P/N not listed in this AD. of airspace necessary to ensure the (iii) For PW1922G, PW1923G, and SUMMARY: This action proposes to safety of aircraft and the efficient use of PW1923G–A model turbofan engines: amend the Class E airspace at Sundance (A) Any HPT 1st-stage hub with P/N airspace. This regulation is within the Airport, Oklahoma City, OK. The FAA scope of that authority as it would 30G5701 with 3,000 CSN or fewer, or with is proposing this action as the result of a P/N not listed in this AD. amend the Class E airspace extending (B) Any HPT rotor 1st-stage blade retaining an airspace review due to the upward from 700 feet above the surface plate with P/N 30G1692 with 3,000 CSN or decommissioning of the Sundance at Sundance Airport, Oklahoma City, fewer, or with a P/N not listed in this AD. Localizer (LOC). OK, to support instrument flight rule (i) Alternative Methods of Compliance DATES: Comments must be received on operations at this airport. (AMOCs) or before August 13, 2021. Comments Invited (1) The Manager, ECO Branch, FAA, has ADDRESSES: Send comments on this the authority to approve AMOCs for this AD, proposal to the U.S. Department of Interested parties are invited to if requested using the procedures found in 14 Transportation, Docket Operations, participate in this proposed rulemaking CFR 39.19. In accordance with 14 CFR 39.19, West Building Ground Floor, Room by submitting such written data, views, send your request to your principal inspector W12–140, 1200 New Jersey Avenue SE, or arguments, as they may desire. or local Flight Standards District Office, as Washington, DC 20590; telephone (202) Comments that provide the factual basis appropriate. If sending information directly 366–9826, or (800) 647–5527. You must supporting the views and suggestions to the manager of the certification office, identify FAA Docket No. FAA–2021– presented are particularly helpful in send it to the attention of the person identified in Related Information. You may 0518/Airspace Docket No. 21–ASW–12, developing reasoned regulatory email your request to: ANE-AD-AMOC@ at the beginning of your comments. You decisions on the proposal. Comments faa.gov. may also submit comments through the are specifically invited on the overall (2) Before using any approved AMOC, internet at https://www.regulations.gov. regulatory, aeronautical, economic, notify your appropriate principal inspector, You may review the public docket environmental, and energy-related or lacking a principal inspector, the manager containing the proposal, any comments aspects of the proposal. of the local flight standards district office/ received, and any final disposition in Communications should identify both certificate holding district office. person in the Dockets Office between docket numbers and be submitted in (j) Related Information 9:00 a.m. and 5:00 p.m., Monday triplicate to the address listed above. (1) For more information about this AD, through Friday, except federal holidays. Commenters wishing the FAA to contact Mark Taylor, Aviation Safety FAA Order 7400.11E, Airspace acknowledge receipt of their comments Engineer, ECO Branch, FAA, 1200 District Designations and Reporting Points, and on this notice must submit with those Avenue, Burlington, MA 01803; phone: (781) subsequent amendments can be viewed comments a self-addressed, stamped

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postcard on which the following which provided guidance to instrument 71.1 [Amended] statement is made: ‘‘Comments to procedures at this airport. ■ 2. The incorporation by reference in Docket No. FAA–2021–0518/Airspace Class E airspace designations are 14 CFR 71.1 of FAA Order 7400.11E, Docket No. 21–ASW–12.’’ The postcard published in paragraph 6005 of FAA Airspace Designations and Reporting will be date/time stamped and returned Order 7400.11E, dated July 21, 2020, Points, dated July 21, 2020, and to the commenter. and effective September 15, 2020, which effective September 15, 2020, is All communications received before is incorporated by reference in 14 CFR amended as follows: 71.1. The Class E airspace designations the specified closing date for comments Paragraph 6005 Class E Airspace Areas will be considered before taking action listed in this document will be Extending Upward From 700 Feet or More on the proposed rule. The proposal published subsequently in the Order. Above the Surface of the Earth. FAA Order 7400.11, Airspace contained in this notice may be changed * * * * * in light of the comments received. A Designations and Reporting Points, is report summarizing each substantive published yearly and effective on ASW OK E5 Oklahoma City, OK public contact with FAA personnel September 15. [Amended] concerned with this rulemaking will be Regulatory Notices and Analyses Will Rogers World Airport, OK filed in the docket. (Lat. 35°23′35″ N, long. 97°36′03″ W) The FAA has determined that this Tinker AFB, OK Availability of NPRMs regulation only involves an established (Lat. 35°24′53″ N, long. 97°23′12″ W) body of technical regulations for which University of Oklahoma Westheimer Airport, An electronic copy of this document OK may be downloaded through the frequent and routine amendments are ° ′ ″ ° ′ ″ necessary to keep them operationally (Lat. 35 14 44 N, long. 97 28 20 W) internet at https://www.regulations.gov. David Jay Perry Airport, OK Recently published rulemaking current, is non-controversial and (Lat. 35°09′18″ N, long. 97°28′13″ W) documents can also be accessed through unlikely to result in adverse or negative Clarence E. Page Municipal Airport, OK the FAA’s web page at https:// comments. It, therefore: (1) Is not a (Lat. 35°29′17″ N, long. 97°49′25″ W) www.faa.gov/air_traffic/publications/ ‘‘significant regulatory action’’ under El Reno Regional Airport, OK ° ′ ″ ° ′ ″ airspace_amendments/. Executive Order 12866; (2) is not a (Lat. 35 28 22 N, long. 98 00 21 W) You may review the public docket ‘‘significant rule’’ under DOT Wiley Post Airport, OK Regulatory Policies and Procedures (44 (Lat. 35°32′03″ N, long. 97°38′49″ W) containing the proposal, any comments Sundance Airport, OK received, and any final disposition in FR 11034; February 26, 1979); and (3) ° ′ ″ ° ′ ″ does not warrant preparation of a (Lat. 35 36 07 N, long. 97 42 22 W) person in the Dockets Office (see the That airspace extending upward from 700 ADDRESSES section for the address and regulatory evaluation as the anticipated impact is so minimal. Since this is a feet above the surface within an 8.1-mile phone number) between 9:00 a.m. and radius of Will Rogers World Airport, and 5:00 p.m., Monday through Friday, routine matter that will only affect air within an 8.2-mile radius of Tinker AFB, and except federal holidays. An informal traffic procedures and air navigation, it within a 6.7-mile radius of University of docket may also be examined during is certified that this rule, when Oklahoma Westheimer Airport, and within normal business hours at the Federal promulgated, would not have a 2.0 miles each side of the 213° bearing from Aviation Administration, Air Traffic significant economic impact on a the airport extending from the 6.7-mile Organization, Central Service Center, substantial number of small entities radius to 7.8 miles southwest of the airport, and within a 6.3-mile radius of David Jay Operations Support Group, 10101 under the criteria of the Regulatory Flexibility Act. Perry Airport, and within a 6.5-mile radius Hillwood Parkway, Fort Worth, TX of Clarence E. Page Municipal Airport, and 76177. Environmental Review within a 6.6-mile radius of El Reno Regional Availability and Summary of Airport, and within a 6.8-mile radius of This proposal will be subject to an Wiley Post Airport, and within a 6.5-mile Documents for Incorporation by environmental analysis in accordance radius of Sundance Airport. Reference with FAA Order 1050.1F, ‘‘Environmental Impacts: Policies and Issued in Fort Worth, Texas, on June 23, This document proposes to amend 2021. FAA Order 7400.11E, Airspace Procedures’’ prior to any FAA final regulatory action. Martin A. Skinner, Designations and Reporting Points, Acting Manager, Operations Support Group, dated July 21, 2020, and effective List of Subjects in 14 CFR 71 ATO Central Service Center. September 15, 2020. FAA Order Airspace, Incorporation by reference, [FR Doc. 2021–13735 Filed 6–28–21; 8:45 am] 7400.11E is publicly available as listed Navigation (air). BILLING CODE 4910–13–P in the ADDRESSES section of this document. FAA Order 7400.11E lists The Proposed Amendment Class A, B, C, D, and E airspace areas, Accordingly, pursuant to the DEPARTMENT OF COMMERCE air traffic service routes, and reporting authority delegated to me, the Federal points. Aviation Administration proposes to National Oceanic and Atmospheric The Proposal amend 14 CFR part 71 as follows: Administration The FAA is proposing an amendment PART 71—DESIGNATION OF CLASS A, 15 CFR Part 922 to 14 CFR part 71 by amending the Class B, C, D, AND E AIRSPACE AREAS; AIR E airspace extending upward from 700 TRAFFIC SERVICE ROUTES; AND Plan for Periodic Review of feet above the surface to within a 6.5- REPORTING POINTS Regulations mile (decreased from a 6.8-mile) radius of Sundance Airport, Oklahoma City, ■ 1. The authority citation for 14 CFR AGENCY: Office of National Marine OK. part 71 continues to read as follows: Sanctuaries (ONMS), National Ocean These actions are the result of an Authority: 49 U.S.C. 106(f), 106(g); 40103, Service (NOS), National Oceanic and airspace review caused by the 40113, 40120; E.O. 10854, 24 FR 9565, 3 CFR, Atmospheric Administration (NOAA), decommissioning of the Sundance LOC 1959–1963 Comp., p. 389. Department of Commerce (DOC).

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