TailplateTailplate
Run a report

Airworthiness Directive 2019-08-08

recurring
Official AD 2019-08-08 · FR doc 2019-10748 · 2019-05-23 · appliance

Airworthiness Directives; Bombardier, Inc., Airplanes

What this AD requires

We are superseding Airworthiness Directive (AD) 2010-14-05, which applied to certain Bombardier, Inc., Model CL-600-1A11 (600), CL- 600-2A12 (601), and CL-600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes. AD 2010-14-05 required inspection for the part numbers of the system and brake accumulators, and repetitive replacement of affected accumulators. This AD adds requirements for relocating the accumulators and revising the existing maintenance or inspection program to incorporate new or more restrictive airworthiness limitations. This AD also adds optional terminating action for certain airplanes. This AD was prompted by reports of on-ground hydraulic accumulator screw cap or end cap failure that resulted in the loss of the associated hydraulic system and high-energy impact damage to adjacent systems and structure. We are issuing this AD to address the unsafe condition on these products.

Repetitive inspection. Re-inspect every 60 months. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2019-08-08 applies to

MakesBombardier
ModelsCL-600-1A11, CL-600-2A12, CL-600-2B16, CL-600
Serial-conditional — narrows to serials 5001–5194, 5301–5524, 5525–5665, 5701–5908, 5909–?.
Part-conditional — 2770571-102, 2770571-103, 2770571-104, 2770571-105, 08-60163-002, 08-60164-002, 601R75139-3 (11094-4), 601R75139-1 (11093-4).

Concerns hydraulic accumulator screw cap/end cap failure risk on Bombardier Challenger CL-600-1A11 (all S/Ns), CL-600-2A12 (all S/Ns), and CL-600-2B16 (S/N ranges as listed) aircraft. Applicability/required action is conditional on which accumulator part number is installed: P/Ns 2770571-102/-103/-104/-105 (earlier production, no action required even if still installed); P/Ns 08-60163-002 and 08-60164-002 require replacement unless S/N suffix 'TNAE' is present; stainless-steel P/Ns 601R75139-3(11094-4) and 601R75139-1(11093-4) do not require replacement but are subject to other mandatory actions. Extracted text is the Notes section of the AD rather than the primary applicability paragraph, so the full introductory 'This AD applies to' clause was not captured in the fetched window.

Whether AD 2019-08-08 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 2019-08-08 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.