Airworthiness directives › 2023-20-01
AD 2023-20-01 Airworthiness Directives; Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes
Models named: BD-500-1A10, BD-500-1A11. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Airbus Canada Limited Partnership (type certificate previously held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Model BD-500-1A10 and BD-500-1A11 airplanes, certificated in any category, as identified in Transport Canada AD CF-2023-28, dated May 4, 2023 (Transport Canada AD CF-2023-28).
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, Transport Canada AD CF-2023-28.
Unsafe condition
This AD was prompted by a report the engine fire extinguishing control and indication system did not illuminate correctly. The FAA is issuing this AD to address the misleading indication given by the AVAIL legend on BTL 1 and BTL 2 push button annunciators (PBAs) that will affect the crew's assessment of the situation. The unsafe condition, if not addressed, could result in the crew hesitating to extinguish an engine fire despite having access to a functional engine fire extinguishing system, or reselecting the FIRE PBA, resulting in loss of the ability to isolate and extinguish the fire.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1