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Airworthiness Directives; Airbus Helicopters
Proposed rule · Federal Register document 2026-19729
- Published
- 09/28/2026
- Comments due
- 11/12/2026
- 14 days left
- Pages
- 3
Summary
Notice of proposed rulemaking (NPRM).
The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Helicopters Model AS 365 N2, AS 365 N3, EC 155 B, EC 155 B1, SA 365 N, and SA 365 N1 helicopters. This proposed AD was prompted by gaps between the seals and engine cowling, which were found during an investigation related to an engine compartment fire. Gaps between the seals and engine cowling could cause inadequate sealing of the engine compartment firewalls leading to fire propagation between engine compartments and reduced effectiveness of the extinguishing agent. This proposed AD would require modifying the engine compartment firewalls by installing angle-brackets along the firewalls. The FAA is proposing this AD to address the unsafe condition on these products.
Details
- Type
- Proposed rule
- Docket
- Docket No. FAA-2026-11787; Project Identifier MCAI-2026-00249-R
- Regulation ID (RIN)
- 2120-AA64
- CFR parts
- 14 CFR 39
- Significant under E.O. 12866
- No
- Topics
- Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety
This page summarizes a Federal Register document. Only the official Federal Register text has legal effect. Comment deadlines can be extended or reopened by a later notice.
Source: Office of the Federal Register, via the Federal Register API · Last updated 09/28/2026