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Proposed rule

Airworthiness Directives; Restricted Category Model CH-47D Helicopters

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register July 8, 2026. Document 2026-13781. Updated Nov. 8, 2026.

What it does

The FAA is revising a notice of proposed rulemaking (NPRM) that would have applied to all restricted category Model CH-47D helicopters. This proposed action would revise the NPRM by expanding the required actions paragraph applicable to all right-hand (RH) forward transmission support beam fittings with any part number, narrowing the area of inspection, and increasing the reporting requirement compliance times. The FAA is proposing this airworthiness directive (AD) to address the unsafe condition on these products. Since these actions would impose an additional burden over those in the NPRM and to address some commenters' concerns, the agency is requesting comments on this SNPRM.

The Federal Aviation Administration's summary, as published in the Federal Register.

What it would change

1 part of Title 14 of the Code of Federal Regulations:

14 CFR 39

Before this

889 earlier Federal Register documents under regulation identifier 2120-AA64 since Jan. 1, 2025.

Since then:

What happens next and when

The FAA must receive comments on this SNPRM by August 24, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number2026-13781
ActionSupplemental notice of proposed rulemaking (SNPRM).
AgenciesTransportation Department; Federal Aviation Administration
PublishedJuly 8, 2026
Comments closeAug. 24, 2026
Regulation identifier (RIN)2120-AA64
DocketFAA-2025-5394

Source: the Federal Register (public domain). The document in the Federal Register