Airworthiness Directives; International Aero Engines, LLC Engines, 89632-89633 [2023-28703]

Download as PDF khammond on DSKJM1Z7X2PROD with PROPOSALS 89632 Federal Register / Vol. 88, No. 248 / Thursday, December 28, 2023 / Proposed Rules appropriate. If sending information directly to the manager of the AIR–520 Continued Operational Safety Branch, send it to the attention of the person identified in paragraph (l)(1) of this AD. (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. Issued on December 21, 2023. Caitlin Locke, Director, Compliance & Airworthiness Division, Aircraft Certification Service. (l) Additional Information (1) For more information about this AD, contact Carol Nguyen, Aviation Safety Engineer, FAA, 2200 South 216th Street, Des Moines, WA 98198; phone: (781) 238–7655; email: carol.nguyen@faa.gov. (2) Service information identified in this AD that is not incorporated by reference is available at the addresses specified in paragraphs (m)(6) and (7) of this AD. Federal Aviation Administration (m) 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 the AD specifies otherwise. (3) The following service information was approved for IBR on [DATE 35 DAYS AFTER PUBLICATION OF THE FINAL RULE]. (i) Pratt & Whitney (PW) Alert Service Bulletin PW1000G–C–72–00–0224–00A– 930A–D, Issue No: 001, dated November 3, 2023. (ii) PW Alert Service Bulletin PW1000G– C–72–00–0225–00A–930A–D, Issue No: 001, dated November 3, 2023. (iii) PW Special Instruction NO. 198F–23, dated November 3, 2023. (4) The following service information was approved for IBR on August 28, 2023 (88 FR 56999, August 22, 2023). (i) PW Special Instruction NO. 149F–23, dated August 4, 2023. (ii) [Reserved] (5) The following service information was approved for IBR on November 7, 2022 (87 FR 59660, October 3, 2022; corrected October 24, 2022 (87 FR 64156)). (i) PW Service Bulletin PW1000G–C–72– 00–0188–00A–930A–D, Issue No: 002, dated July 8, 2022. (ii) [Reserved] (6) For PW service information identified in this AD, contact International Aero Engines, LLC, 400 Main Street, East Hartford, CT 06118; phone: (860) 565–0140; email: help24@pw.utc.com; website: connect.prattwhitney.com. (7) 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 (817) 222–5110. (8) You may view this material at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, visit: www.archives.gov/federal-register/cfr/ ibr-locations or email: fr.inspection@ nara.gov. VerDate Sep<11>2014 19:37 Dec 27, 2023 Jkt 262001 [FR Doc. 2023–28693 Filed 12–22–23; 4:15 pm] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION 14 CFR Part 39 [Docket No. FAA–2023–2237; Project Identifier AD–2023–01057–E] RIN 2120–AA64 Airworthiness Directives; International Aero Engines, LLC Engines Federal Aviation Administration (FAA), DOT. ACTION: Proposed rule; withdrawal. AGENCY: The FAA is withdrawing a notice of proposed rulemaking (NPRM) that proposed to supersede Airworthiness Directive (AD) 2022–19– 15, which applies to certain International Aero Engines, LLC (IAE LLC) Model PW1100G series engines; and AD 2023–16–07, which applies to certain IAE LLC Model PW1100G series engines and PW1400G series engines. AD 2022–19–15 requires an angled ultrasonic inspection (AUSI) of the high-pressure turbine (HPT) 1st-stage disk and HPT 2nd-stage disk, and replacement if necessary. AD 2023–16– 07 requires an AUSI of the HPT 1ststage hub (also known as the HPT 1ststage disk) and HPT 2nd-stage hub (also known as the HPT 2nd-stage disk) for cracks, and replacement if necessary, which is terminating action for AD 2022–19–15. The NPRM was prompted by a manufacturer investigation that determined an increased risk of powder metal anomalies for all powder metal parts in certain powder metal production campaigns, which are susceptible to failure significantly earlier than previously determined. The NPRM would have retained the AUSI requirement for certain HPT 1st-stage and HPT 2nd-stage hubs from AD 2023– 16–07. The NPRM would also have required performing an AUSI of the HPT 1st-stage hub, HPT 2nd-stage hub, highpressure compressor (HPC) 7th-stage integrally bladed rotor (IBR–7), and HPC 8th-stage integrally bladed rotor (IBR–8) for cracks and replacement if necessary. The NPRM would also have required accelerated replacement of the HPC IBR–7, HPC IBR–8, HPC rear hub, HPT 1st-stage hub, HPT 1st-stage air seal, HPT 1st-stage blade retaining plate, HPT SUMMARY: PO 00000 Frm 00006 Fmt 4702 Sfmt 4702 2nd-stage hub, HPT 2nd-stage blade retaining plate, and HPT 2nd-stage rear seal. Since issuance of the NPRM, the FAA has received information that an error was inadvertently included in the compliance times for some of the HPT 1st-stage and 2nd-stage hubs, which would have required removal significantly later than necessary. Accordingly, the NPRM is withdrawn. DATES: As of December 28, 2023, the proposed rule, which was published in the Federal Register on December 12, 2023 (88 FR 86088), is withdrawn. ADDRESSES: AD Docket: You may examine the AD docket at regulations.gov by searching for and locating Docket No. FAA–2023– 2237; 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 AD action, the NPRM, any comments received, and other information. The street address for Docket Operations is Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590. FOR FURTHER INFORMATION CONTACT: Carol Nguyen, Aviation Safety Engineer, FAA, 2200 South 216th Street, Des Moines, WA 98198; phone: (781) 238– 7655; email: carol.nguyen@faa.gov. SUPPLEMENTARY INFORMATION: Background The FAA issued an NPRM that proposed to amend 14 CFR part 39 by adding an AD that would apply to certain IAE LLC Model PW1122G–JM, PW1124G1–JM, PW1124G–JM, PW1127G–JM, PW1127G1–JM, PW1127GA–JM, PW1129G–JM, PW1130G–JM, PW1133G–JM, PW1133GA–JM, PW1428G–JM, PW1428GA–JM, PW1428GH–JM, PW1431G–JM, PW1431GA–JM, and PW1431GH–JM engines. The NPRM was published in the Federal Register on December 12, 2023 (88 FR 86088). The NPRM was prompted by an analysis of an event involving an IAE LLC Model PW1127GA–JM engine, which experienced failure of a HPC IBR–7 that resulted in an engine shutdown and aborted takeoff; and the FAA’s determination to supersede AD 2022– 19–15, Amendment 39–22184 (87 FR 59660, October 3, 2022; corrected October 24, 2022 (87 FR 64156)) (AD 2022–19–15), and AD 2023–16–07, Amendment 39–22526 (88 FR 56999, August 22, 2023) (AD 2023–16–07). The NPRM proposed to retain the AUSI requirement for certain HPT 1st-stage and HPT 2nd-stage hubs from AD 2023– 16–07. The NPRM also proposed to require performing an AUSI of the HPT E:\FR\FM\28DEP1.SGM 28DEP1 Federal Register / Vol. 88, No. 248 / Thursday, December 28, 2023 / Proposed Rules 1st-stage hub, HPT 2nd-stage hub, HPC IBR–7, and HPC IBR–8 for cracks and replacement if necessary. The NPRM also proposed to require accelerated replacement of the HPC IBR–7, HPC IBR–8, HPC rear hub, HPT 1st-stage hub, HPT 1st-stage air seal, HPT 1st-stage blade retaining plate, HPT 2nd-stage hub, HPT 2nd-stage blade retaining plate, and HPT 2nd-stage rear seal. The proposed actions were intended to address failure of the HPT 1st-stage hub, HPT 2nd-stage hub, HPC IBR–7, and HPC IBR–8, which could result in uncontained hub failure, release of highenergy debris, damage to the engine, damage to the airplane, and loss of the airplane. Comments The FAA received comments on the NPRM. However, due to the FAA’s determination that it is necessary to withdraw and issue a new NPRM, the comments will be copied to Docket No. FAA–2023–2401 and addressed in the final rule for that AD action. Additionally, the FAA requests that the commenters review the new NPRM at Docket No. FAA–2023–2401. FAA’s Conclusions khammond on DSKJM1Z7X2PROD with PROPOSALS Upon further consideration, the FAA has determined that the NPRM does not adequately address the identified unsafe condition. Accordingly, the NPRM is withdrawn. Regulatory Findings Since this action only withdraws an NPRM, it is neither a proposed nor a final rule. This action therefore is not covered under Executive Order 12866, the Regulatory Flexibility Act, or DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979). Jkt 262001 Accordingly, the notice of proposed rulemaking (Docket No. FAA–2023– 2237), which was published in the Federal Register on December 12, 2023 (88 FR 86088), is withdrawn. ■ Issued on December 21, 2023. Caitlin Locke, Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2023–28703 Filed 12–22–23; 4:15 pm] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Since issuance of the NPRM, the FAA has received information from Pratt & Whitney that an error was inadvertently included in the removal times for some of the HPT 1st-stage and 2nd-stage hubs, which would have required removal significantly later than necessary. Because the removal timeframe needed to be shortened, the FAA determined it is necessary to withdraw the NPRM and issue a new NPRM for the unsafe condition with the correct compliance times. Withdrawal of the NPRM constitutes only such action and does not preclude the FAA from further rulemaking on this issue, nor does it commit the FAA to any course of action in the future. 19:37 Dec 27, 2023 The Withdrawal 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. AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA–2023–2402; 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, the mandatory continuing airworthiness information (MCAI), any comments received, and other information. The street address for Docket Operations is listed above. Material Incorporated by Reference Actions Since the NPRM Was Issued VerDate Sep<11>2014 List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. 89633 Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2023–2402; Project Identifier MCAI–2023–00370–T] RIN 2120–AA64 Airworthiness Directives; Bombardier, Inc., Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model CL– 600–2B16 (601–3A, 601–3R, and 604 Variants) airplanes. This proposed AD was prompted by a report indicating that a new filter plate connector for the nose wheel steering (NWS) system electronic control module (ECM) does not meet certain certification requirements. This proposed AD would require replacing all affected noncompliant ECMs. This proposed AD would also prohibit the installation of affected parts under certain conditions. The FAA is proposing this AD to address the unsafe condition on these products. SUMMARY: The FAA must receive comments on this proposed AD by February 12, 2024. DATES: 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 regulations.gov. Follow the instructions for submitting comments. • Fax: 202–493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– ADDRESSES: PO 00000 Frm 00007 Fmt 4702 Sfmt 4702 • For service information identified in this NPRM, contact Bombardier Business Aircraft Customer Response Center, 400 Coˆte-Vertu Road West, Dorval, Que´bec H4S 1Y9, Canada; telephone 514–855–2999; email ac.yul@ aero.bombardier.com; website bombardier.com. • 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. FOR FURTHER INFORMATION CONTACT: Steven Dzierzynski, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (516) 228–7300; email: 9-avs-nyacocos@faa.gov. 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 ADDRESSES. Include ‘‘Docket No. FAA–2023–2402; Project Identifier MCAI–2023–00370–T’’ 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 the proposal 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 regulations.gov, including any personal information you provide. The agency will also post a report summarizing each E:\FR\FM\28DEP1.SGM 28DEP1

Agencies

[Federal Register Volume 88, Number 248 (Thursday, December 28, 2023)]
[Proposed Rules]
[Pages 89632-89633]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2023-28703]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2023-2237; Project Identifier AD-2023-01057-E]
RIN 2120-AA64


Airworthiness Directives; International Aero Engines, LLC Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Proposed rule; withdrawal.

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SUMMARY: The FAA is withdrawing a notice of proposed rulemaking (NPRM) 
that proposed to supersede Airworthiness Directive (AD) 2022-19-15, 
which applies to certain International Aero Engines, LLC (IAE LLC) 
Model PW1100G series engines; and AD 2023-16-07, which applies to 
certain IAE LLC Model PW1100G series engines and PW1400G series 
engines. AD 2022-19-15 requires an angled ultrasonic inspection (AUSI) 
of the high-pressure turbine (HPT) 1st-stage disk and HPT 2nd-stage 
disk, and replacement if necessary. AD 2023-16-07 requires an AUSI of 
the HPT 1st-stage hub (also known as the HPT 1st-stage disk) and HPT 
2nd-stage hub (also known as the HPT 2nd-stage disk) for cracks, and 
replacement if necessary, which is terminating action for AD 2022-19-
15. The NPRM was prompted by a manufacturer investigation that 
determined an increased risk of powder metal anomalies for all powder 
metal parts in certain powder metal production campaigns, which are 
susceptible to failure significantly earlier than previously 
determined. The NPRM would have retained the AUSI requirement for 
certain HPT 1st-stage and HPT 2nd-stage hubs from AD 2023-16-07. The 
NPRM would also have required performing an AUSI of the HPT 1st-stage 
hub, HPT 2nd-stage hub, high-pressure compressor (HPC) 7th-stage 
integrally bladed rotor (IBR-7), and HPC 8th-stage integrally bladed 
rotor (IBR-8) for cracks and replacement if necessary. The NPRM would 
also have required accelerated replacement of the HPC IBR-7, HPC IBR-8, 
HPC rear hub, HPT 1st-stage hub, HPT 1st-stage air seal, HPT 1st-stage 
blade retaining plate, HPT 2nd-stage hub, HPT 2nd-stage blade retaining 
plate, and HPT 2nd-stage rear seal. Since issuance of the NPRM, the FAA 
has received information that an error was inadvertently included in 
the compliance times for some of the HPT 1st-stage and 2nd-stage hubs, 
which would have required removal significantly later than necessary. 
Accordingly, the NPRM is withdrawn.

DATES: As of December 28, 2023, the proposed rule, which was published 
in the Federal Register on December 12, 2023 (88 FR 86088), is 
withdrawn.

ADDRESSES: 
    AD Docket: You may examine the AD docket at regulations.gov by 
searching for and locating Docket No. FAA-2023-2237; 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 AD action, the 
NPRM, any comments received, and other information. The street address 
for Docket Operations is Docket Operations, M-30, West Building Ground 
Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Carol Nguyen, Aviation Safety 
Engineer, FAA, 2200 South 216th Street, Des Moines, WA 98198; phone: 
(781) 238-7655; email: [email protected].

SUPPLEMENTARY INFORMATION:

Background

    The FAA issued an NPRM that proposed to amend 14 CFR part 39 by 
adding an AD that would apply to certain IAE LLC Model PW1122G-JM, 
PW1124G1-JM, PW1124G-JM, PW1127G-JM, PW1127G1-JM, PW1127GA-JM, PW1129G-
JM, PW1130G-JM, PW1133G-JM, PW1133GA-JM, PW1428G-JM, PW1428GA-JM, 
PW1428GH-JM, PW1431G-JM, PW1431GA-JM, and PW1431GH-JM engines. The NPRM 
was published in the Federal Register on December 12, 2023 (88 FR 
86088). The NPRM was prompted by an analysis of an event involving an 
IAE LLC Model PW1127GA-JM engine, which experienced failure of a HPC 
IBR-7 that resulted in an engine shutdown and aborted takeoff; and the 
FAA's determination to supersede AD 2022-19-15, Amendment 39-22184 (87 
FR 59660, October 3, 2022; corrected October 24, 2022 (87 FR 64156)) 
(AD 2022-19-15), and AD 2023-16-07, Amendment 39-22526 (88 FR 56999, 
August 22, 2023) (AD 2023-16-07). The NPRM proposed to retain the AUSI 
requirement for certain HPT 1st-stage and HPT 2nd-stage hubs from AD 
2023-16-07. The NPRM also proposed to require performing an AUSI of the 
HPT

[[Page 89633]]

1st-stage hub, HPT 2nd-stage hub, HPC IBR-7, and HPC IBR-8 for cracks 
and replacement if necessary. The NPRM also proposed to require 
accelerated replacement of the HPC IBR-7, HPC IBR-8, HPC rear hub, HPT 
1st-stage hub, HPT 1st-stage air seal, HPT 1st-stage blade retaining 
plate, HPT 2nd-stage hub, HPT 2nd-stage blade retaining plate, and HPT 
2nd-stage rear seal.
    The proposed actions were intended to address failure of the HPT 
1st-stage hub, HPT 2nd-stage hub, HPC IBR-7, and HPC IBR-8, which could 
result in uncontained hub failure, release of high-energy debris, 
damage to the engine, damage to the airplane, and loss of the airplane.

Actions Since the NPRM Was Issued

    Since issuance of the NPRM, the FAA has received information from 
Pratt & Whitney that an error was inadvertently included in the removal 
times for some of the HPT 1st-stage and 2nd-stage hubs, which would 
have required removal significantly later than necessary. Because the 
removal timeframe needed to be shortened, the FAA determined it is 
necessary to withdraw the NPRM and issue a new NPRM for the unsafe 
condition with the correct compliance times.
    Withdrawal of the NPRM constitutes only such action and does not 
preclude the FAA from further rulemaking on this issue, nor does it 
commit the FAA to any course of action in the future.

Comments

    The FAA received comments on the NPRM. However, due to the FAA's 
determination that it is necessary to withdraw and issue a new NPRM, 
the comments will be copied to Docket No. FAA-2023-2401 and addressed 
in the final rule for that AD action. Additionally, the FAA requests 
that the commenters review the new NPRM at Docket No. FAA-2023-2401.

FAA's Conclusions

    Upon further consideration, the FAA has determined that the NPRM 
does not adequately address the identified unsafe condition. 
Accordingly, the NPRM is withdrawn.

Regulatory Findings

    Since this action only withdraws an NPRM, it is neither a proposed 
nor a final rule. This action therefore is not covered under Executive 
Order 12866, the Regulatory Flexibility Act, or DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979).

List of Subjects in 14 CFR Part 39

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

The Withdrawal

0
Accordingly, the notice of proposed rulemaking (Docket No. FAA-2023-
2237), which was published in the Federal Register on December 12, 2023 
(88 FR 86088), is withdrawn.

    Issued on December 21, 2023.
Caitlin Locke,
Director, Compliance & Airworthiness Division, Aircraft Certification 
Service.
[FR Doc. 2023-28703 Filed 12-22-23; 4:15 pm]
BILLING CODE 4910-13-P
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