Summary
The FAA proposes to adopt a new airworthiness directive (AD) for all restricted category Model CH-47D helicopters. This proposed AD was prompted by reports of fatigue cracking of the right-hand (RH) forward transmission support beam fitting. This proposed AD would require repetitively inspecting the RH forward transmission support beam fitting for cracking and, depending on the results, repairing any crack(s). This proposed AD would also require submitting data on any previous repairs and replaced fittings. The FAA is proposing this AD to address the unsafe condition on these products.
Directive Details
AD Number
FAA-2025-5394
Document Number
2025-23613
Type
Proposed Rule
Publication Date
December 22, 2025
Comments Close
February 5, 2026
Affected Manufacturer
Restricted Category Model CH-47D
Criticality
routine
Emergency
No
Docket ID
Docket No. FAA-2025-5394
Topics
Official Documents
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