Is AD 2025-22-04 a recurring Airworthiness Directive?

No — AD 2025-22-04 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2025-22-04 apply to?

AD 2025-22-04 applies to Bombardier, Inc. — models CL-600-2B16 (604 Variant), CL-600. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2025-22-04

one-time

Official AD 2025-22-04 · FR doc 2025-20064 · 2025-11-18 · airframe

Airworthiness Directives; Bombardier, Inc., Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for all Bombardier, Inc., Model CL-600-2B16 (604 Variant) airplanes. This AD was prompted by reports that the flap system on-board recorder (FSOBR) interfaces with the flap control unit signals and may result in the flap control unit monitors tripping, causing Flap Fail messages and possibly an uncommanded flap movement. This AD requires the disconnection of the FSOBR and prohibits future installation of this system. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2025-22-04 applies to

MakesBombardier, Inc.

ModelsCL-600-2B16 (604 Variant), CL-600

Whether AD 2025-22-04 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 2025-22-04 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.