Data / Federal rules / 2024-07438
Airworthiness Directives; General Electric Company Engines, and Various Restricted Category Rotorcraft
The Federal Aviation Administration published this final rule in the Federal Register on April 8, 2024. It took effect on April 23, 2024.
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What the agency says
The FAA is superseding airworthiness directive (AD) 2024-05- 51, which applied to certain General Electric Company (GE) Model CT7- 2E1, CT7-2F1, CT7-8A, CT7-8E, and CT7-8F5 engines, and various restricted category helicopters with GE Model T700-GE-700, -701A, - 701C, -701D/CC, -701D, -401, -401C, CT7-2D, or CT7-2D1 engines installed. AD 2024-05-51 required a phase array ultrasonic inspection of the torque reference tube magnetic insert braze joint of the power turbine (PT) drive shaft assembly for inadequate braze coverage, and repair or replacement of the PT drive shaft assembly if necessary. This AD was prompted by at least four reports of failures of the torque reference tube magnetic insert braze joint of the PT drive shaft assembly within the last several months. This AD retains the requirements of AD 2024-05-51 and expands the applicability to include a PT drive shaft assembly part number that was inadvertently omitted. The FAA previously sent an emergency AD to all known U.S. owners and operators of these engines and helicopters and is now issuing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2024-07438
- Type
- Final rule
- Action
- Final rule; request for comments
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- April 8, 2024
- Takes effect
- April 23, 2024
- Dates
- This AD is effective April 23, 2024. Emergency AD 2024-06-51, issued on March 22, 2024, which contained the requirements of this amendment, was effective with actual notice.
- Docket
- Docket No. FAA-2024-0774; Project Identifier AD-2024-00197-E,R; Amendment 39-22723; AD 2024-06-51
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 4
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in April 2024
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