Is AD 2024-22-07 a recurring Airworthiness Directive?

No — AD 2024-22-07 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2024-22-07 apply to?

AD 2024-22-07 applies to De Havilland Aircraft Of Canada Limited — models DHC-8-401, DHC-8-402, DHC-8. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2024-22-07

one-time

Official AD 2024-22-07 · FR doc 2024-27593 · 2024-11-26 · airframe

Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain De Havilland Aircraft of Canada Limited Model DHC-8-401 and - 402 airplanes. This AD was prompted by a report of an in-flight event where isolation valve caution messages were received. This AD requires inspecting the fuse/shuttle valve serial numbers, and replacing certain fuse/shuttle valves, as specified in a Transport Canada AD, which is incorporated by reference (IBR). The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2024-22-07 applies to

MakesDe Havilland Aircraft Of Canada Limited

ModelsDHC-8-401, DHC-8-402, DHC-8

Applies to airplanes as identified in Transport Canada AD CF-2024-01, dated January 11, 2024.

Whether AD 2024-22-07 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

How AD compliance is recorded

A valid compliance record (14 CFR 43.9) states:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.

Date — When the work was done.

Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.

Signature & certificate — The A&P/IA who returned it to service, with certificate number.

Is AD 2024-22-07 complied with on your aircraft?

Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.

Look up a tail number →Read the full directive (Federal Register)

Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.