Is AD 2012-10-07 a recurring Airworthiness Directive?

No — AD 2012-10-07 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 2012-10-07

Q: Which aircraft does AD 2012-10-07 apply to?

AD 2012-10-07 applies to Bombardier — models CL-600-2C10, CL-600-2D15, CL-600-2D24, CL-600-2E25, CL-600. Serial/part conditions may narrow it to specific aircraft.

one-time

Official AD 2012-10-07 · FR doc 2012-12333 · 2012-05-25 · airframe

Airworthiness Directives; Bombardier, Inc. Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, & 702); CL-600-2D15 (Regional Jet Series 705); CL-600-2D24 (Regional Jet Series 900); and CL-600-2E25 (Regional Jet Series 1000) airplanes. This AD was prompted by reports of deformation of the pressure regulator on the oxygen cylinder, which was attributed to batches of raw material that did not meet required tensile strength. This AD requires an inspection to determine if certain oxygen pressure regulators are installed, and replacement of oxygen cylinder and regulator assemblies (CRAs) containing pressure regulators that do not meet required material properties. We are issuing this AD to prevent elongation of the pressure regulator neck, which could result in rupture of the oxygen cylinder, and in the case of cabin depressurization, oxygen would not be available when required.

Which aircraft AD 2012-10-07 applies to

MakesBombardier

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

Serial-conditional — narrows to serials 10002–10999, 15001–15990, 19001–19990.

S/N 10002-10999 apply to CL-600-2C10 (Regional Jet Series 700/701/702); S/N 15001-15990 apply to CL-600-2D15 (Regional Jet Series 705) and CL-600-2D24 (Regional Jet Series 900); S/N 19001-19990 apply to CL-600-2E25 (Regional Jet Series 1000). Note: the prep script's applicability-window regex captured the wrong span of text for this AD; this entry was corrected against the AD's actual (c) Applicability section in the cached full text.

Whether AD 2012-10-07 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 2012-10-07 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.