Landing Gear — Introduction of New Brake Accumulator Life Limit
- Published
- Effective
- Deadline
- Replaces
- 2022-14
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must amend their approved maintenance schedules within 90 days from April 14, 2022, to include the new brake accumulator discard tasks. They must also determine the accumulated landings on installed brake accumulators and replace them before exceeding the specified life limits. Initial compliance must occur before reaching the life limits or within six months from April 14, 2022, whichever is later.
Summary
Canadian Airworthiness Directive CF-2022-25 introduces a new brake accumulator life limit for Bombardier BD-700-1A10 and BD-700-1A11 aircraft, serial numbers 9002 through 9998 and 60001 through 60046. This directive updates maintenance requirements to prevent brake accumulator failures that could lead to loss of hydraulic pressure and braking capability. It supersedes the previous AD CF-2022-14 and corrects certain service bulletin references.
What changed
CF-2022-25 replaces AD CF-2022-14 by correcting references to Bombardier Service Bulletins related to brake accumulator life limits. It mandates incorporation of specific maintenance tasks into approved maintenance schedules and requires operators to determine accumulated landings on brake accumulators. The directive clarifies compliance timelines and updates the applicable Time Limits/Maintenance Checks manuals.
Why it matters
This directive is critical for operators and maintenance organizations to ensure the reliability of the braking system on affected Bombardier aircraft. Adhering to the new brake accumulator life limits reduces the risk of hydraulic system failure and potential runway excursions. Compliance ensures continued airworthiness and regulatory conformity under Canadian Aviation Regulations.
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