Is AD 2012-12-22 a recurring Airworthiness Directive?

Yes — AD 2012-12-22 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2012-12-22 apply to?

AD 2012-12-22 applies to Bae Systems — models 146-100A, 146-200A, 146-300A, 146-RJ70A, 146-RJ85A, 146-RJ100A, 146. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2012-12-22

recurring

Official AD 2012-12-22 · FR doc 2012-15169 · 2012-06-25 · airframe

Airworthiness Directives; BAE Systems (Operations) Limited Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for certain BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ airplanes. This AD was prompted by a report of a crack found on the left-hand sidewall well on the nose landing gear (NLG). This AD requires performing a repetitive high frequency eddy current inspection of the stiffeners on the left-hand sidewall on the NLG bay for cracks, and repair or replace the sidewall if necessary. We are issuing this AD to detect and correct failure of the sidewall, which could result in consequent in-flight rapid decompression of the cabin and injury to the passengers.

Repetitive inspection. Re-inspect. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2012-12-22 applies to

MakesBae Systems

Models146-100A, 146-200A, 146-300A, 146-RJ70A, 146-RJ85A, 146-RJ100A, 146

Part-conditional — HC537L0002-000, HC537L0002-002, HC537L0002-004, HC537H8021-000, HC537H8021-002, HC537H8021-004, HC537H8018-000.

Applies only to airplanes, all serial numbers, on which the left-hand sidewall of the nose landing gear (NLG) bay has one of the listed part numbers installed.

Whether AD 2012-12-22 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 2012-12-22 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.