Landing Gear — Main Landing Gear Orifice Support Tube Fracture
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Bombardier CL-600-2C10, CL-600-2D15, CL-600-2D24, and CL-600-2E25 aircraft must replace the MLG OST according to specified flight cycle thresholds outlined in Bombardier Service Bulletin 670BA-32-058. Additionally, within 30 days of the directive's effective date, maintenance schedules must be updated to include the new airworthiness limitation task ALI 32-11-09-703 as per the Maintenance Requirement Manual Part 2 Revision 17.
Summary
Canadian Airworthiness Directive CF-2018-02 addresses the risk of fracture in the Main Landing Gear Orifice Support Tube (MLG OST) on Bombardier Inc. aeroplanes, specifically models CL-600-2C10, CL-600-2D15, CL-600-2D24, and CL-600-2E25. The directive mandates replacement of the existing MLG OST with a redesigned part and introduces a new airworthiness limitation task to ensure ongoing safety and structural integrity.
What changed
This new Airworthiness Directive introduces mandatory replacement of the MLG OST on affected Bombardier aircraft to prevent fractures that can lead to structural damage or landing gear collapse. It also requires incorporation of a new airworthiness limitation task into the maintenance schedule to monitor and maintain the redesigned component.
Why it matters
The fracture of the MLG OST poses a serious safety risk that is not detectable during routine maintenance, potentially leading to landing gear failure and structural damage. Compliance with this directive is critical for operators and maintenance organizations to ensure aircraft safety and regulatory compliance, preventing costly incidents and grounding.
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