Landing Gear — Nose Landing Gear Door Hinge Fitting Failure
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must incorporate the new inspection task 32-22-00-104 into the BD-100-1A10 TLMC within 60 days of the AD's effective date, 19 October 2022. They must perform the special detailed inspection at the specified threshold and repeat intervals outlined in the applicable TLMC Temporary Revisions TR5-2-101 for Challenger 300 and TR5-2-30 for Challenger 350. Continued compliance with updated TLMC revisions approved by Transport Canada is also acceptable.
Summary
Canadian Airworthiness Directive CF-2022-57 addresses a nose landing gear door hinge fitting failure issue on Bombardier Inc. model BD-100-1A10 aeroplanes, including all serial numbers. The directive mandates inspections to detect cracks in the fillet radii of the nose landing gear door hinge fittings to prevent door misalignment and potential in-flight hazards. This AD applies specifically to the Challenger 300 and Challenger 350 variants of the BD-100-1A10.
What changed
This new Airworthiness Directive introduces a mandatory special detailed inspection task for the nose landing gear door hinge fittings fillet radii. It requires incorporation of Task Number 32-22-00-104 into the aircraft's Time Limits/Maintenance Checks (TLMC) and specifies inspection intervals as per the applicable Temporary Revisions TR5-2-101 and TR5-2-30. Compliance with later approved revisions of the TLMC also satisfies the AD requirements.
Why it matters
The directive is critical for operators and maintenance organizations to detect early cracks that could cause nose landing gear door misalignment, increased aerodynamic drag, yawing, jamming of the landing gear door, or even door detachment during flight. Ensuring compliance enhances flight safety and prevents costly unscheduled maintenance or potential accidents. It also ensures regulatory compliance with Canadian Aviation Regulations related to airworthiness directives.
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