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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.
Published
Dec 22, 2025
Comments Close
Feb 5, 2026
Citation
90 FR 59764
Agencies
2
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Docket No. FAA-2025-5394
Project Identifier AD-2025-01194-R
2120-AA64
14 CFR 39