36390 Federal Register / Vol. 87, No. 117 / Friday, June 17, 2022 / Rules and Regulations 

availability of this material at the FAA, call 

206–231–3195. 

(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 

fr.inspection@nara.gov, or go to: https://

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued on June 3, 2022. 

Gaetano A. Sciortino, 

Deputy Director for Strategic Initiatives, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2022–13016 Filed 6–16–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2022–0589; Project 

Identifier AD–2022–00376–E; Amendment 

39–22084; AD 2022–12–12] 

RIN 2120–AA64 

Airworthiness Directives; Pratt & 

Whitney Division Turbofan Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

Pratt & Whitney Division (PW) PW4062 

model turbofan engines. This AD was 

prompted by a report of a manufacturing 

quality escape due to insufficient 

cooling of the low-pressure turbine 

(LPT) stage 5 air seal resulting in a 

reduction of the low-cycle fatigue (LCF) 

life limit. This AD requires removal and 

replacement of the LPT stage 5 air seal 

with a part eligible for installation. The 

FAA is issuing this AD to address the 

unsafe condition on these products. 

DATES: This AD is effective July 5, 2022. 

The FAA must receive comments on 

this AD by August 1, 2022. 

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: (202) 493–2251. 

• 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. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0589; or in person at Docket 

Operations between 9 a.m. and 5 p.m., 

Monday through Friday, except Federal 

holidays. The AD docket contains this 

final rule, any comments received, and 

other information. The street address for 

Docket Operations is listed above. 

FOR FURTHER INFORMATION CONTACT: 

Carol Nguyen, Aviation Safety Engineer, 

ECO Branch, FAA, 1200 District 

Avenue, Burlington, MA 01803; phone: 

(781) 238–7655; email: carol.nguyen@

faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA received a report from the 

manufacturer of a quality escape, 

resulting in a life reduction of the LPT 

stage 5 air seal installed on certain 

PW4062 model turbofan engines. 

Subsequent investigation by the 

manufacturer revealed that insufficient 

cooling after heat treatment resulted in 

non-conformance to the design 

specifications. This non-conformance 

lowers the LCF capability in a section of 

the LPT stage 5 air seal that already has 

an LCF life limit, resulting in a 

reduction in the LCF life limit from 

15,000 cycles to 8,240 cycles. This 

condition, if not addressed, could result 

in the uncontained release of the LPT 

stage 5 air seal, damage to the engine, 

and damage to the airplane. The FAA is 

issuing this AD to address the unsafe 

condition on these products. 

FAA’s Determination 

The FAA is issuing this AD because 

the agency has determined the unsafe 

condition described previously is likely 

to exist or develop in other products of 

the same type design. 

AD Requirements 

This AD requires removal and 

replacement of the LPT stage 5 air seal. 

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. 

The FAA has found the risk to the 

flying public justifies waiving notice 

and comment prior to adoption of this 

rule because no domestic operators use 

this product. It is unlikely that the FAA 

will receive any adverse comments or 

useful information about this AD from 

any U.S. operator. Accordingly, notice 

and opportunity for prior public 

comment are unnecessary, pursuant to 5 

U.S.C. 553(b)(3)(B). In addition, for the 

foregoing reason, 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. 

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–2022–0589; 

Project Identifier AD–2022–00376–E’’ 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 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 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 


lotter on DSK11XQN23PROD with RULES1
Federal Register / Vol. 87, No. 117 / Friday, June 17, 2022 / Rules and Regulations 36391 

should be sent to Carol Nguyen, 

Aviation Safety Engineer, ECO Branch, 

FAA, 1200 District Avenue, Burlington, 

MA 01803. Any commentary that the 

FAA receives which is not specifically 

designated as CBI will be placed in the 

public docket for this rulemaking. 

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 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 0 engines installed on airplanes 

of U.S. registry. 

The FAA estimates the following 

costs to comply with this AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Remove and replace LPT stage 5 

air seal.

49 work-hours × $85 per hour = $4,165 ....................... $165,270 $169,435 $0 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. Subtitle VII: 

Aviation Programs describes in more 

detail the scope of the Agency’s 

authority. 

The FAA is issuing this rulemaking 

under the authority described in 

Subtitle VII, Part A, Subpart III, Section 

44701: General requirements. Under 

that section, Congress charges the FAA 

with promoting safe flight of civil 

aircraft in air commerce by prescribing 

regulations for practices, methods, and 

procedures the Administrator finds 

necessary for safety in air commerce. 

This regulation is within the scope of 

that authority because it addresses an 

unsafe condition that is likely to exist or 

develop on products identified in this 

rulemaking action. 

Regulatory Findings 

This AD will not have federalism 

implications under Executive Order 

13132. This AD will not have a 

substantial direct effect on the States, on 

the relationship between the national 

government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

and 

(2) Will not affect intrastate aviation 

in Alaska. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 14 CFR part 39 as 

follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

2022–12–12 Pratt & Whitney Division: 

Amendment 39–22084; Docket No. 

FAA–2022–0589; Project Identifier AD– 

2022–00376–E. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective July 5, 2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Pratt & Whitney 

Division (PW) PW4062 model turbofan 

engines with an installed low-pressure 

turbine (LPT) stage 5 air seal, part number 

(P/N) 50N324, having a serial number 

(S/N) listed in Table 1 to paragraph (c) of this 

AD, installed. 


lotter on DSK11XQN23PROD with RULES1
36392 Federal Register / Vol. 87, No. 117 / Friday, June 17, 2022 / Rules and Regulations 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 7250, Turbine Section. 

(e) Unsafe Condition 

This AD was prompted by a report of a 

manufacturing quality escape due to 

insufficient cooling of the LPT stage 5 air seal 

resulting in a reduction of the life of the lowcycle fatigue (LCF) life limit. The FAA is 

issuing this AD to prevent failure of the LPT 

stage 5 air seal. The unsafe condition, if not 

addressed, could result in the uncontained 

release of the LPT stage 5 air seal, 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 

At the next piece-part exposure, or before 

the LPT stage 5 air seal accumulates 8,240 

cycles since new, whichever occurs first after 

the effective date of this AD, remove the LPT 

stage 5 air seal from service and replace it 

with a part eligible for installation. 

(h) Definitions 

(1) For the purpose of this AD, ‘‘piece-part 

exposure’’ is when an LPT stage 5 air seal has 

been disassembled from the engine. 

(2) For the purpose of this AD, a ‘‘part 

eligible for installation’’ is an LPT stage 5 air 

seal, P/N 50N324, with an S/N not listed in 

Table 1 to Paragraph (c) of 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 paragraph (j) of this AD and 

email 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 

For more information about this AD, 

contact Carol Nguyen, Aviation Safety 

Engineer, ECO Branch, FAA, 1200 District 

Avenue, Burlington, MA 01803; phone: (781) 

238–7655; email: carol.nguyen@faa.gov. 

(k) Material Incorporated by Reference 

None. 

Issued on June 14, 2022. 

Christina Underwood, 

Acting Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–13088 Filed 6–16–22; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 71 

[Docket No. FAA–2022–0317; Airspace 

Docket No. 21–AAL–63] 

RIN 2120–AA66 

Modification of Class D and E 

Airspace, and Removal of Class E 

Airspace; King Salmon Airport, AK 

AGENCY: Federal Aviation 

Administration (FAA), Department of 

Transportation (DOT). 

ACTION: Final rule. 

SUMMARY: This action modifies the Class 

D and Class E surface area airspace, and 

the Class E airspace extending upward 

from 700 feet above the surface at King 

Salmon Airport, King Salmon, AK. 

Additionally, the FAA is removing the 

Class E airspace designated as an 

extension to Class D or Class E airspace, 

as it is no longer required. Furthermore, 

this action removes a navigational aid 

(NAVAID) from the legal description of 

the Class E5 text header. Lastly, this 

action updates the Class D and Class E 

legal descriptions. These actions will 

ensure the safety and management of 

instrument flight rules (IFR) and visual 

flight rules (VFR) operations at the 

airport. 


lotter on DSK11XQN23PROD with RULES1ER17JN22.033</GPH>

Table 1 to Paragraph (c)-Affected LPT Stage 5 Air Seals 

Engine SIN LPT Module SIN 

LPT Stage 5 Air Seal 

(PIN 50N324) SIN 

729382 D29382 CLDLD30255 

729389 D29389 CLDLD30254 

729392 D29392 CLDLD30256 

729393 D29393 CLDLD30265 

729395 D29395 CLDLD30253 

729396 D29396 CLDLD30257 

729397 D29397 CLDLD30267 

729398 D29398 CLDLD30269 

729399 D29399 CLDLD30266 

729400 D29400 CLDLD30263 

729401 D29401 CLDLD30268 

729402 D29402 CLDLD30260 

729404 D29404 CLDLD30262 

729406 D29406 CLDLD30270