Airworthiness Directive · Amendment 39-23085 · Fire detection system
Airbus Helicopters
This AD applies to Airbus Helicopters Model AS 365 N3, EC 155B, and EC155B1 helicopters, certificated in any category.
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.
Except as specified in paragraphs (h) and (i) of this AD: Comply with all required actions and compliance times specified in, and in accordance with European Union Aviation Safety Agency AD 2022-0261, dated December 20, 2022 (EASA AD 2022-0261).
(1) Where EASA AD 2022-0261 refers to its effective date, this AD requires using the effective date of this AD.
(2) This AD does not adopt the “Remarks” section of EASA AD 2022-0261.
Although the material referenced in EASA AD 2022-0261 specifies to submit certain information to the manufacturer, this AD does not include that requirement.
