Data / Federal rules / 2025-13644
Airworthiness Directives; General Electric Company Engines
The Federal Aviation Administration published this final rule in the Federal Register on July 21, 2025. It took effect on August 25, 2025.
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What the agency says
The FAA is adopting a new airworthiness directive (AD) for certain General Electric Company (GE) Model CF34-10E2A1, CF34-10E6, CF34-10E6A1, CF34-10E7, CF34-10E7-B, CF34-10E5, and CF34-10E5A1 engines. This AD was prompted by a report of cracks found in the high- pressure turbine (HPT) front rotating air seal. This AD requires performing repetitive fluorescent penetrant inspections (FPIs) to detect indications or linear indications (any indication which is four times longer than the width of that same indication) in the HPT front rotating air seal and, if necessary, replacing the HPT front rotating air seal or HPT rotor disk with parts eligible for installation as applicable. This AD also includes an optional terminating action to the repetitive FPIs. The FAA is issuing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2025-13644
- Type
- Final rule
- Action
- Final rule
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- July 21, 2025
- Takes effect
- August 25, 2025
- Dates
- This AD is effective August 25, 2025.
- Docket
- Docket No. FAA-2024-1885; Project Identifier AD-2023-00995-E; Amendment 39-23081; AD 2025-14-03
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 3
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in July 2025
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