Airworthiness directives › 2024-22-07
AD 2024-22-07 Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
Models named: DHC-8-401, -402. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to De Havilland Aircraft of Canada Limited Model DHC-8-401 and -402 airplanes, certificated in any category, as identified in Transport Canada AD CF-2024-01, dated January 11, 2024 (Transport Canada AD CF-2024-01).
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-2024-01.
Unsafe condition
This AD was prompted by a report of an in-flight event where isolation valve caution messages were received. The FAA is issuing this AD to address failure of certain fuse/shuttle valves. The unsafe condition, if not addressed, could result in the loss of powered landing gear extension/retraction, outboard and inboard spoilers, nose wheel steering, normal braking, and possibly a runway excursion.
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