# Proposed AD FAA-2024-2721: General Electric Company Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2025-10-11
- Products: General Electric
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: January 30, 2025, 90 FR 8505
- Comments due: March 17, 2025
- Became: [AD 2025-10-11](https://openairdocs.org/ad/2025-10-11)
- Docket: FAA-2024-2721 (https://www.regulations.gov/docket/FAA-2024-2721, where comments are filed)
- Project: AD-2024-00610-E
- FR document: 2025-01728
- Official PDF: https://openairdocs.org/files/sha256/00/e7/00e75f67f85cc98ed1519c41a01f6013fc3a06713ab85a29b79b4a521bfce342 (from https://www.govinfo.gov/content/pkg/FR-2025-01-30/pdf/2025-01728.pdf)
- Federal Register: https://www.federalregister.gov/documents/2025/01/30/2025-01728/airworthiness-directives-general-electric-company-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2025-01728-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2024-2721

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain General Electric Company (GE) Model CF6-80E1A2, CF6-80E1A3, CF6-80E1A4, and CF6-80E1A4/B 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 30, 2025: Notice of proposed rulemaking (NPRM). (first notice), FR document 2025-01728, comments due Mar 17, 2025 (https://www.federalregister.gov/documents/2025/01/30/2025-01728/airworthiness-directives-general-electric-company-engines)

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