Is AD 2021-11956 a recurring Airworthiness Directive?

No — AD 2021-11956 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 2021-11956

Q: Which aircraft does AD 2021-11956 apply to?

AD 2021-11956 applies to Mhi Rj Aviation Ulc — models CL-600-2B19, CL-600-2C10, CL-600-2C11, CL-600-2D15, CL-600-2D24, CL-600-2E25, CL-600. Serial/part conditions may narrow it to specific aircraft.

one-time

AD 2021-11956 · 2021-06-08 · airframe

Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes

What this AD requires

The FAA is superseding Airworthiness Directive (AD) 2019-22- 07, which applied to all MHI RJ Aviation ULC Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes, Model CL-600-2C10 (Regional Jet Series 700, 701 & 702) airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes, Model CL-600-2D24 (Regional Jet Series 900) airplanes, and Model CL-600-2E25 (Regional Jet Series 1000) airplanes. AD 2019-22-07 required revising the existing airplane flight manual (AFM) to include a limitation and an abnormal operating procedure for the Automatic Flight Control System (AFCS). This AD requires revising the existing AFM and adding airplanes to the applicability. This AD was prompted by a finding that the limitation and abnormal operating procedure did not include reference to a certain mode. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2021-11956 applies to

MakesMhi Rj Aviation Ulc

ModelsCL-600-2B19, CL-600-2C10, CL-600-2C11, CL-600-2D15, CL-600-2D24, CL-600-2E25, CL-600

Applies to all manufacturer serial numbers of the listed models.

Whether AD 2021-11956 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 2021-11956 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.