# Proposed AD FAA-2025-0015: General Electric Company Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2025-11-03
- Products: General Electric
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: January 31, 2025, 90 FR 8687
- Comments due: March 17, 2025
- Became: [AD 2025-11-03](https://openairdocs.org/ad/2025-11-03)
- Docket: FAA-2025-0015 (https://www.regulations.gov/docket/FAA-2025-0015, where comments are filed)
- Project: AD-2024-00615-E
- FR document: 2025-02016
- Official PDF: https://openairdocs.org/files/sha256/f5/59/f559bcded4dd4fe0ac2e835e650a665937a6aac97bfe2fb6cefb99eedffd38a4 (from https://www.govinfo.gov/content/pkg/FR-2025-01-31/pdf/2025-02016.pdf)
- Federal Register: https://www.federalregister.gov/documents/2025/01/31/2025-02016/airworthiness-directives-general-electric-company-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2025-02016-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2025-0015

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain General Electric Company (GE) Model GEnx-1B64, GEnx-1B64/ P1, GEnx-1B64/P2, GEnx-1B67, GEnx-1B67/P1, GEnx-1B67/P2, GEnx-1B70, GEnx-1B70/75/P1, GEnx-1B70/75/P2, GEnx-1B70/P1, GEnx-1B70/P2, GEnx- 1B70C/P1, GEnx-1B70C/P2, GEnx-1B74/75/P1, GEnx-1B74/75/P2, GEnx-1B76/ P2, GEnx-1B76A/P2, and GEnx-2B67/P engines. This proposed AD was prompted by a manufacturer investigation that revealed certain high- pressure turbine (HPT) stage 1 and HPT stage 2 disks were manufactured from powder metal material suspected to contain iron inclusion. This proposed AD would require replacement of affected HPT stage 1 and HPT stage 2 disks with parts eligible for installation. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Jan 31, 2025: Notice of proposed rulemaking (NPRM). (first notice), FR document 2025-02016, comments due Mar 17, 2025 (https://www.federalregister.gov/documents/2025/01/31/2025-02016/airworthiness-directives-general-electric-company-engines)

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