Summary
The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model AS 365 N3, EC 155B, and EC155B1 helicopters. This AD was prompted by reports of false engine fire warnings. This AD requires replacing affected engine fire detectors and prohibits installing an affected engine fire detector or an engine that contains an affected engine fire detector. The FAA is issuing this AD to address the unsafe condition on these products.
Directive Details
AD Number
FAA-2025-0625
Document Number
2025-13715
Type
Rule
Publication Date
July 22, 2025
Effective Date
August 26, 2025
Affected Manufacturer
Airbus
Criticality
routine
Emergency
No
Docket ID
Docket No. FAA-2025-0625
Topics
Official Documents
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