Is AD 2021-22199 a recurring Airworthiness Directive?

No — AD 2021-22199 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 2021-22199

Q: Which aircraft does AD 2021-22199 apply to?

AD 2021-22199 applies to Airbus Canada Limited Partnership — models BD-500-1A10, BD-500-1A11, BD-500. Serial/part conditions may narrow it to specific aircraft.

one-time

AD 2021-22199 · 2021-10-13 · airframe

Airworthiness Directives; Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500- 1A11 airplanes. This AD was prompted by a report that following an in- service engine shutdown during taxi, water was found to be dripping into the forward avionics bay; the water caused a short circuit and tripped a circuit breaker. This AD requires replacing the forward galley slotted drain covers with solid blanking plates and modifying the associated drain tubing to block water. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2021-22199 applies to

MakesAirbus Canada Limited Partnership

ModelsBD-500-1A10, BD-500-1A11, BD-500

Serial-conditional — narrows to serials 50001–50018, 50020–50055, 55001–55016, 55018–55068, 55070–55083, 55086–55088, 55090–55090.

Type certificate previously held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc. Serial numbers 50001-50018 and 50020-50055 apply to Model BD-500-1A10; serial numbers 55001-55016, 55018-55068, 55070-55083, 55086-55088, and 55090 apply to Model BD-500-1A11.

Whether AD 2021-22199 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 2021-22199 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.