Is AD 2020-19-13 a recurring Airworthiness Directive?

No — AD 2020-19-13 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2020-19-13 apply to?

AD 2020-19-13 applies to Bombardier — models CL-600-1A11, CL-600-2A12, CL-600-2B16, CL-600. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2020-19-13

one-time

Official AD 2020-19-13 · FR doc 2020-21420 · 2020-09-29 · airframe

Airworthiness Directives; Bombardier, Inc., Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model CL-600-1A11 (600), CL-600-2A12 (601), and CL-600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes. This AD was prompted by a report that fast and easy access to the portable oxygen bottle may be prevented by the portable oxygen bottle installation's upper bracket latch assembly catching on the pressure gauge tube or on the pressure gauge bezel of the portable oxygen bottle. This AD requires a check to identify the manufacturer and part number of the portable oxygen bottle installation, and, if necessary, modification of the portable oxygen bottle installation. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2020-19-13 applies to

MakesBombardier

ModelsCL-600-1A11, CL-600-2A12, CL-600-2B16, CL-600

Serial-conditional — narrows to serials 1004–1085, 3001–3066, 5001–5194, 5301–5665, 5701–5988, 6050–6119.

Part-conditional — 36758-02, 36758-12, H3-2091-1.

Applies only to airplanes equipped with Scott (Avox/Zodiac) 5500 or 5600 series 11 cubic-foot portable oxygen bottle(s) with upper bracket P/N 36758-02, 36758-12, or H3-2091-1 installed at the neck of the bottle(s). Serial ranges by model: CL-600-1A11 (600) S/N 1004-1085; CL-600-2A12 (601) S/N 3001-3066; CL-600-2B16 (601-3A, 601-3R, and 604 Variants) S/N 5001-5194, 5301-5665, 5701-5988, and 6050-6119.

Whether AD 2020-19-13 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 2020-19-13 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.