TailplateTailplate
Run a report

Airworthiness Directive 2023-06-04

one-time
Official AD 2023-06-04 · FR doc 2023-07741 · 2023-04-13 · 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 reports of some passenger oxygen mask dispensing units (MDUs) with lanyards that are too long to meet the proper length specifications of the airplane. This AD requires replacing the affected MDUs with units that meet the proper length specifications, replacing the placards, and re-identifying the assemblies. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2023-06-04 applies to

MakesBombardier, Inc.
ModelsCL-600-1A11, CL-600-2A12, CL-600-2B16, CL-600

Applicable serial numbers per model are identified in service bulletins: CL-600-1A11 (600) - Bombardier SB 600-0777, dated December 13, 2021; CL-600-2A12 (601) - Bombardier SB 601-1109, Revision 01, dated May 6, 2022; CL-600-2B16 (601-3A, 601-3R) - Bombardier SB 601-1109, Revision 01, dated May 6, 2022; CL-600-2B16 (604) - Bombardier SB 604-35-007, Revision 01, dated May 6, 2022.

Whether AD 2023-06-04 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 2023-06-04 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.