Is AD E6-21268 a recurring Airworthiness Directive?

No — AD E6-21268 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD E6-21268 apply to?

AD E6-21268 applies to Bombardier — models CL-600-2A12, CL-600-2B16. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive E6-21268

one-time

AD E6-21268 · 2006-12-15 · airframe

Airworthiness Directives; Bombardier Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), and CL-600-2B16 (CL-601-3A and CL-601-3R) Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for all Bombardier Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), and CL- 600-2B16 (CL-601-3A and CL-601-3R) airplanes. This AD requires implementing a corrosion prevention and control program (CPCP) either by accomplishing specific tasks or by revising the maintenance inspection program to include a CPCP. This AD results from the determination that, as airplanes age, they are more likely to exhibit indications of corrosion. We are issuing this AD to prevent structural failure of the airplane due to corrosion.

Which aircraft AD E6-21268 applies to

MakesBombardier

ModelsCL-600-2A12, CL-600-2B16

applicability derived from the AD summary — confirm the model/serial from the records

Whether AD E6-21268 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 E6-21268 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.