Federal Register / Vol. 87, No. 117 / Friday, June 17, 2022 / Rules and Regulations 36387 

(j) Related Information 

(1) Refer to Mandatory Continuing 

Airworthiness Information (MCAI) TCCA AD 

CF–2020–49R1, dated May 20, 2021, for 

related information. This MCAI may be 

found in the AD docket at https://

www.regulations.gov by searching for and 

locating Docket No. FAA–2021–0832. 

(2) For more information about this AD, 

contact Antariksh Shetty, Aerospace 

Engineer, Airframe and Propulsion Section, 

FAA, New York ACO Branch, 1600 Stewart 

Avenue, Suite 410, Westbury, NY 11590; 

telephone 516–228–7300; email 9-avs-nyacocos@faa.gov. 

(k) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) 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) Task 57–51–00–290–801, ‘‘Special 

Detailed Inspection of the Inboard-Flap 

Internal Ribs,’’ of Subject 57–51–00, ‘‘Flaps,’’ 

in Chapter 57, ‘‘Wings,’’ of the Bombardier 

Global Express Aircraft Maintenance 

Manual—Part Two, Publication No. BD–700 

AMM, Revision 90, dated May 19, 2021. 

Note 1 to paragraph (k)(2)(i): For obtaining 

the task for the Bombardier Global Express 

AMM—Part Two, Publication No. BD–700 

AMM, use Document Identification No. GL 

700 AMM. 

(ii) Task 57–51–00–290–801, ‘‘Special 

Detailed Inspection of the Inboard-Flap 

Internal Ribs,’’ of Subject 57–51–00, ‘‘Flaps,’’ 

in Chapter 57, ‘‘Wings,’’ of the Bombardier 

Global Express XRS Aircraft Maintenance 

Manual—Part Two, Publication No. BD–700 

XRS AMM, Revision 68, dated May 19, 2021. 

Note 2 to paragraph (k)(2)(ii): For 

obtaining the task for the Bombardier Global 

Express XRS AMM—Part Two, Publication 

No. BD–700 XRS AMM, use Document 

Identification No. GL XRS AMM. 

(iii) Task 57–51–00–290–801, ‘‘Special 

Detailed Inspection of the Inboard-Flap 

Internal Ribs,’’ of Subject 57–51–00, ‘‘Flaps,’’ 

in Chapter 57, ‘‘Wings,’’ of the Bombardier 

Global 5000 Aircraft Maintenance Manual— 

Part Two, Publication No. BD–700 AMM, 

Revision 71, dated May 19, 2021. 

Note 3 to paragraph (j)(2)(iii): For 

obtaining the task for the Bombardier Global 

5000 AMM—Part Two, Publication No. BD– 

700 AMM, use Document Identification No. 

GL 5000 AMM. 

(iv) Task 57–51–00–290–801, ‘‘Special 

Detailed Inspection of the Inboard-Flap 

Internal Ribs,’’ of Subject 57–51–00, ‘‘Flaps,’’ 

in Chapter 57, ‘‘Wings,’’ of the Bombardier 

Global 5000 Featuring Global Vision Flight 

Deck Aircraft Maintenance Manual—Part 

Two, Publication No. GL 5000 GVFD AMM, 

Revision 38, dated May 19, 2021. 

(v) Task 57–51–00–290–801, ‘‘Special 

Detailed Inspection of the Inboard-Flap 

Internal Ribs,’’ of Subject 57–51–00, ‘‘Flaps,’’ 

in Chapter 57, ‘‘Wings,’’ of the Bombardier 

Global 5500 Aircraft Maintenance Manual— 

Part Two, Publication No. GL 5500 AMM, 

Revision 7, dated May 19, 2021. 

(vi) Task 57–51–00–290–801, ‘‘Special 

Detailed Inspection of the Inboard-Flap 

Internal Ribs,’’ of Subject 57–51–00, ‘‘Flaps,’’ 

in Chapter 57, ‘‘Wings,’’ of the Bombardier 

Global 6000 Aircraft Maintenance Manual— 

Part Two, Publication No. GL 6000 AMM, 

Revision 39, dated May 19, 2021. 

(vii) Task 57–51–00–290–801, ‘‘Special 

Detailed Inspection of the Inboard-Flap 

Internal Ribs,’’ of Subject 57–51–00, ‘‘Flaps,’’ 

in Chapter 57, ‘‘Wings,’’ of the Bombardier 

Global 6500 Aircraft Maintenance Manual— 

Part Two, Publication No. GL 6500 AMM, 

Revision 8, dated May 19, 2021. 

(3) For service information identified in 

this AD, contact Bombardier Business 

Aircraft Customer Response Center, 400 Coˆte 

Vertu Road West, Dorval, Que ́bec H4S 1Y9, 

Canada; 514–855–2999; email ac.yul@

aero.bombardier.com; internet https://

www.bombardier.com. 

(4) You may view this service information 

at the FAA, Airworthiness Products Section, 

Operational Safety Branch, 2200 South 216th 

St., Des Moines, WA. For information on the 

availability of this material at the FAA, call 

206–231–3195. 

(5) You may view this service information 

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/ 

ibr-locations.html. 

Issued on May 24, 2022. 

Christina Underwood, 

Acting Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2022–13096 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–2022–0380; Project 

Identifier MCAI–2021–01178–T; Amendment 

39–22076; AD 2022–12–04] 

RIN 2120–AA64 

Airworthiness Directives; Airbus SAS 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

Airbus SAS Model A330–200 series 

airplanes, Model A330–200 Freighter 

series airplanes, and Model A330–300 

series airplanes. This AD was prompted 

by a determination that certain service 

information specified in AD 2018–20– 

19 contained instructions that could be 

misleading, resulting in a necessary 

inspection not being accomplished on 

certain airplanes. This AD requires a 

rototest for certain modified airplanes 

for any crack around the right-side 

upper and lower bulk door support or 

door latch fitting holes at certain bulk 

cargo door frames, or repetitive 

inspections for any crack at certain 

fittings, and on-condition actions, as 

specified in a European Union Aviation 

Safety Agency (EASA) AD, which is 

incorporated by reference. The FAA is 

issuing this AD to address the unsafe 

condition on these products. 

DATES: This AD is effective July 22, 

2022. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of July 22, 2022. 

ADDRESSES: For material incorporated 

by reference (IBR) in this AD, contact 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 

8999 000; email ADs@easa.europa.eu; 

internet www.easa.europa.eu. You may 

find this IBR material on the EASA 

website at https://ad.easa.europa.eu. 

You may view this material at the FAA, 

Airworthiness Products Section, 

Operational Safety Branch, 2200 South 

216th St., Des Moines, WA. For 

information on the availability of this 

material at the FAA, call 206–231–3195. 

It is also available in the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0380. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2022–0380; 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 mandatory continuing 

airworthiness information (MCAI), any 

comments received, and other 

information. The address for Docket 

Operations is U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE, 

Washington, DC 20590. 

FOR FURTHER INFORMATION CONTACT: 

Vladimir Ulyanov, Aerospace Engineer, 

Large Aircraft Section, FAA, 

International Validation Branch, 2200 

South 216th St., Des Moines, WA 98198; 

phone 206–231–3229; email 

vladimir.ulyanov@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

EASA, which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA AD 2021–0233, 

dated October 27, 2021 (EASA AD 


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36388 Federal Register / Vol. 87, No. 117 / Friday, June 17, 2022 / Rules and Regulations 

2021–0233) (also referred to as the 

MCAI), to correct an unsafe condition 

for certain Airbus SAS Model A330–200 

series airplanes, Model A330–200 

Freighter series airplanes, and Model 

A330–300 series airplanes. 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to certain Airbus SAS Model 

A330–200 series airplanes, Model 

A330–200 Freighter series airplanes, 

and Model A330–300 series airplanes. 

The NPRM published in the Federal 

Register on March 28, 2022 (87 FR 

17198). The NPRM was prompted by a 

determination that tartaric sulfuric 

anodizing (TSA)/chromic acid 

anodizing (CAA) surface treatment in 

the door fitting attachment holes leads 

to a detrimental effect on fatigue 

behavior; and that certain service 

information specified in AD 2018–20– 

19, Amendment 39–19453 (83 FR 

52126, October 16, 2018) (AD 2018–20– 

19) contains instructions that could be 

misleading, resulting in a necessary 

inspection not being accomplished on 

certain airplanes. The potentially 

misleading instructions are for an 

optional action, and apply only to 

model A330–200, A330–200 Freighter, 

and A330–300 airplanes. The NPRM 

proposed to require a rototest for certain 

modified airplanes for any crack around 

the right-side upper and lower bulk 

door support or door latch fitting holes 

at certain bulk cargo door frames, or 

repetitive inspections for any crack at 

certain fittings, and on-condition 

actions, as specified in EASA AD 2021– 

0233. 

The FAA is issuing this AD to address 

possible fatigue cracks in the bulk cargo 

door frames, caused by TSA/CAA 

surface treatment in frame (FR) 67 and 

FR69 cargo door frame attachment 

holes. See the MCAI for additional 

background information. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received comments from the 

Air Line Pilots Association, 

International (ALPA) who supported the 

NPRM without change. 

Conclusion 

The FAA reviewed the relevant data, 

considered the comment received, and 

determined that air safety requires 

adopting this AD as proposed. Except 

for minor editorial changes, this AD is 

adopted as proposed in the NPRM. 

None of the changes will increase the 

economic burden on any operator. 

Accordingly, the FAA is issuing this AD 

to address the unsafe condition on these 

products. 

Related Service Information Under 1 

CFR Part 51 

EASA AD 2021–0233 specifies 

procedures for a rototest for any crack 

around the holes at the upper and lower 

door support fittings of frame FR67 and 

FR69 right hand side and the holes at 

door latch fitting of FR69 right hand 

side; or repetitive detailed inspections 

of the frame around the fittings, or high 

frequency eddy current (HFEC) and 

ultrasonic inspections of the upper door 

supper fitting holes and rototests of the 

lower door fitting holes of the door latch 

fittings at FR69 for any crack; and oncondition actions. On-condition actions 

include installing new (never installed 

on an airplane) bushes to the latch 

fittings of FR69 and repair, and a 

rototest of the support fittings and the 

frame holes at FR67. 

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. 

Costs of Compliance 

The FAA estimates that this AD 

affects 109 airplanes of U.S. registry. 

The FAA estimates the following costs 

to comply with this AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per product Cost on U.S. 

operators 

Up to 15 work-hours × $85 per hour = $1,275 ................................................................ $0 Up to $1,275 ....... Up to $138,975. 

The FAA estimates the following 

costs to do any necessary on-condition 

action that would be required based on 

the results of any required or optional 

actions. The FAA has no way of 

determining the number of aircraft that 

might need this on-condition action: 

ESTIMATED COSTS OF ON-CONDITION ACTIONS

Labor cost Parts cost Cost per 

product 

3 work-hours × $85 per hour = $255 ...................................................................................................................... $1,915 $2,170 

The FAA has received no definitive 

data on which to base the cost estimates 

for the repairs specified in this AD. 

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. 


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Federal Register / Vol. 87, No. 117 / Friday, June 17, 2022 / Rules and Regulations 36389 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Will not affect intrastate aviation 

in Alaska, 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. 

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: 

2022–12–04 Airbus SAS: Amendment 39– 

22076; Docket No. FAA–2022–0380; 

Project Identifier MCAI–2021–01178–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective July 22, 2022. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to the Airbus SAS 

airplanes identified in paragraphs (c)(1) 

through (3) of this AD, certificated in any 

category, as identified in European Union 

Aviation Safety Agency (EASA) AD 2021– 

0233, dated October 27, 2021 (EASA AD 

2021–0233). 

(1) Model A330–201, –202, –203, –223, and 

–243 airplanes. 

(2) Model A330–223F and –243F airplanes. 

(3) Model A330–301, –302, –303, –321, 

–322, –323, –341, –342, and –343 airplanes. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 53, Fuselage. 

(e) Unsafe Condition 

This AD was prompted by a determination 

that tartaric sulfuric anodizing (TSA)/ 

chromic acid anodizing (CAA) surface 

treatment in the door fitting attachment holes 

leads to a detrimental effect on fatigue 

behavior; and that certain service information 

specified in AD 2018–20–19 contains 

instructions that could be misleading, 

resulting in a necessary inspection not being 

accomplished on certain airplanes. The FAA 

is issuing this AD to address possible fatigue 

cracks in the bulk cargo door frames, caused 

by TSA/CAA surface treatment in frame (FR) 

67 and FR69 cargo door frame attachment 

holes. Cracks in the bulk cargo door frames 

can cause the in-flight loss of a bulk cargo 

door, damage to the airplane, and subsequent 

reduced control of the airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Requirements 

Except as specified in paragraph (h) of this 

AD: Comply with all required actions and 

compliance times specified in, and in 

accordance with, EASA AD 2021–0233. 

(h) Exceptions to EASA AD 2021–0233 

(1) Where EASA AD 2021–0233 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

(2) The ‘‘Remarks’’ section of EASA AD 

2021–0233 does not apply to this AD. 

(3) Where paragraph (4) of EASA AD 2021– 

0233 specifies to ‘‘accomplish those 

instructions accordingly’’ if discrepancies are 

detected, for this AD a discrepancy is any 

cracking, and if any cracking is detected, the 

cracking must be repaired before further 

flight using a method approved by the 

Manager, Large Aircraft Section, 

International Validation Branch, FAA; or 

EASA; or Airbus SAS’s EASA Design 

Organization Approval (DOA). If approved by 

the DOA, the approval must include the 

DOA-authorized signature. 

(4) Where paragraph (4) of EASA AD 2021– 

0233 specifies to ‘‘contact Airbus for 

approved repair instructions,’’ for this AD 

use ‘‘accomplish corrective actions in 

accordance with the instructions of the SB 

and contact the Manager, Large Aircraft 

Section, International Validation Branch, 

FAA; or EASA; or Airbus SAS’s EASA DOA 

for approved repair instructions. If approved 

by the DOA, the approval must include the 

DOA-authorized signature’’ 

(5) Although the service information 

referenced in EASA AD 2021–0233 specifies 

to do a check of the aircraft records for 

accomplishment of certain service 

information, and specifies that action as 

‘‘RC,’’ (required for compliance), this AD 

does not include that requirement. 

(6) Where the Applicability section of 

EASA AD 2021–0233 refers to ‘‘defects,’’ for 

this AD ‘‘defects’’ are cracks. 

(i) No Reporting Requirement 

Although the service information 

referenced in EASA AD 2021–0233 specifies 

to submit certain information to the 

manufacturer, this AD does not include that 

requirement. 

(j) Additional AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, Large Aircraft 

Section, 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 responsible Flight 

Standards Office, as appropriate. If sending 

information directly to the Large Aircraft 

Section, International Validation Branch, 

send it to the attention of the person 

identified in paragraph (k) of this AD. 

Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov. Before using any 

approved AMOC, notify your appropriate 

principal inspector, or lacking a principal 

inspector, the manager of the responsible 

Flight Standards Office. 

(2) Contacting the Manufacturer: For any 

requirement in this AD to obtain instructions 

from a manufacturer, the instructions must 

be accomplished using a method approved 

by the Manager, Large Aircraft Section, 

International Validation Branch, FAA; or 

EASA; or Airbus SAS’s EASA Design 

Organization Approval (DOA). If approved by 

the DOA, the approval must include the 

DOA-authorized signature. 

(3) Required for Compliance (RC): Except 

as required by paragraph(s) (h)(3) and (4), (i), 

and (j)(2) of this AD, if any service 

information contains procedures or tests that 

are identified as RC, those procedures and 

tests must be done to comply with this AD; 

any procedures or tests that are not identified 

as RC are recommended. Those procedures 

and tests that are not identified as RC may 

be deviated from using accepted methods in 

accordance with the operator’s maintenance 

or inspection program without obtaining 

approval of an AMOC, provided the 

procedures and tests identified as RC can be 

done and the airplane can be put back in an 

airworthy condition. Any substitutions or 

changes to procedures or tests identified as 

RC require approval of an AMOC. 

(k) Related Information 

For more information about this AD, 

contact Vladimir Ulyanov, Aerospace 

Engineer, Large Aircraft Section, FAA, 

International Validation Branch, 2200 South 

216th St., Des Moines, WA 98198; phone 

206–231–3229; email vladimir.ulyanov@

faa.gov. 

(l) 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 

(EASA) AD 2021–0233, dated October 27, 

2021. 

(ii) [Reserved] 

(3) For EASA AD 2021–0233, contact 

EASA, Konrad-Adenauer-Ufer 3, 50668 

Cologne, Germany; telephone +49 221 8999 

000; email ADs@easa.europa.eu; internet 

www.easa.europa.eu. You may find this 

EASA AD on the EASA website at https://

ad.easa.europa.eu. 

(4) You may view this material at the FAA, 

Airworthiness Products Section, Operational 

Safety Branch, 2200 South 216th St., Des 

Moines, WA. For information on the 


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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