# Proposed AD FAA-2025-0480: International Aero Engines LLC Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2025-26-04
- Products: International Aero Engines
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 28, 2025, 90 FR 14057
- Comments due: May 12, 2025
- Became: [AD 2025-26-04](https://openairdocs.org/ad/2025-26-04)
- Docket: FAA-2025-0480 (https://www.regulations.gov/docket/FAA-2025-0480, where comments are filed)
- Project: AD-2024-00546-E
- FR document: 2025-05329
- Official PDF: https://openairdocs.org/files/sha256/b1/30/b130a831b22207292e0342b474d0773deff77528f001ff18b00e1ff6debeb5ec (from https://www.govinfo.gov/content/pkg/FR-2025-03-28/pdf/2025-05329.pdf)
- Federal Register: https://www.federalregister.gov/documents/2025/03/28/2025-05329/airworthiness-directives-international-aero-engines-llc-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2025-05329-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2025-0480

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all International Aero Engines, LLC (IAE LLC) Model PW1122G-JM, PW1124G-JM, PW1124G1-JM, PW1127G-JM, PW1127G1-JM, PW1127G1A-JM, PW1127G1B-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. This proposed AD was prompted by a report of six fan blade fracture events due to bird strikes, three of which resulted in an engine under cowl fire or pool fire. This proposed AD would require removal of one loop cushion clamp from the hydraulic fuel pressure fuel oil cooler fuel tube assembly (CP09 tube assembly) and replacement of the thermal management system (TMS) clevis mounts with redesigned TMS clevis mounts. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Mar 28, 2025: Notice of proposed rulemaking (NPRM). (first notice), FR document 2025-05329, comments due May 12, 2025 (https://www.federalregister.gov/documents/2025/03/28/2025-05329/airworthiness-directives-international-aero-engines-llc-engines)

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