Fuselage — Keel Beam Cut-Out Reinforcement — Unclear Airworthiness Limitation Task Effectivity
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Affected operators must incorporate the revised AWL task 53-41-180 into their Maintenance Requirements Manual within 60 days of the directive's effective date, 29 June 2023. They must then perform the task at the intervals specified in Temporary Revision 2B-2283. Compliance with any later approved revisions of the MRM Part 2 also fulfills the directive's requirements.
Summary
Canadian Airworthiness Directive CF-2023-41 addresses the unclear effectivity of the Airworthiness Limitation (AWL) task number 53-41-180 related to the fuselage keel beam cut-out reinforcement on Mitsubishi Heavy Industries RJ Aviation ULC model CL-600-2B19 aircraft, serial numbers 7946 through 8113. This directive clarifies maintenance requirements to ensure structural integrity of these aircraft. Operators must update their Maintenance Requirements Manual accordingly and perform the revised inspection task at specified intervals.
What changed
CF-2023-41 introduces a requirement to incorporate a revised AWL task 53-41-180 into Appendix B of the Maintenance Requirements Manual Part 2, clarifying the task's effectivity which was previously unclear. It mandates performing this revised task at the threshold and repeat intervals specified in Temporary Revision 2B-2283 dated 16 March 2023. Compliance with later approved revisions or superseding TRs also satisfies this directive.
Why it matters
This directive is critical for aviation professionals because missing the AWL task due to unclear effectivity could allow undetected structural failures, risking the aircraft's structural integrity. Operators, maintenance organizations, and compliance teams must ensure the revised task is properly integrated and performed to maintain airworthiness. It helps prevent safety risks and regulatory non-compliance related to structural inspections.
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