# Proposed AD FAA-2025-2555: International Aero Engines AG Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2026-17-03
- Products: International Aero Engines
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 18, 2025, 90 FR 51600
- Comments due: January 2, 2026
- Became: [AD 2026-17-03](https://openairdocs.org/ad/2026-17-03)
- Docket: FAA-2025-2555 (https://www.regulations.gov/docket/FAA-2025-2555, where comments are filed)
- Project: AD-2025-00433-E
- FR document: 2025-20088
- Official PDF: https://openairdocs.org/files/sha256/b5/17/b517341f876760c82b99988dc2fbb7f4323bfc20e37a1228efaaa09979ffcbb3 (from https://www.govinfo.gov/content/pkg/FR-2025-11-18/pdf/2025-20088.pdf)
- Federal Register: https://www.federalregister.gov/documents/2025/11/18/2025-20088/airworthiness-directives-international-aero-engines-ag-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2025-20088-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2025-2555

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain International Aero Engines AG (IAE AG) Model V2522-A5, V2524-A5, V2525-D5, V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, V2531-E5, and V2533-A5 engines. This proposed AD was prompted by a manufacturer investigation that revealed that certain 3rd stage HPC rotor blades were susceptible to shroud wear and blade failure. This proposed AD would require replacement of affected 3rd stage HPC rotor blades with parts eligible for installation. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Nov 18, 2025: Notice of proposed rulemaking (NPRM). (first notice), FR document 2025-20088, comments due Jan 2, 2026 (https://www.federalregister.gov/documents/2025/11/18/2025-20088/airworthiness-directives-international-aero-engines-ag-engines)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.