Wings — Revised Non-Destructive Testing Manual Procedure for Airworthiness Limitation Task Number 57-51-00-109
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Affected operators must implement the revised non-destructive testing procedure ET-57-51-009 dated March 1, 2022 or later for Airworthiness Limitation Task 57-51-00-109 starting from the effective date of August 4, 2022. Use of the previous procedure dated May 6, 2019 or earlier is prohibited. Compliance is mandatory from the directive's effective date unless already accomplished.
Summary
Wings — Revised Non-Destructive Testing Manual Procedure for Airworthiness Limitation Task Number 57-51-00-109 is a Canadian Airworthiness Directive (CF-2022-40) affecting Bombardier Inc. BD-700-1A10 and BD-700-1A11 aircraft with specific serial numbers. It mandates the use of a revised non-destructive testing procedure to ensure proper inspection of the metal ribs at the ends of the inner, middle, and outer flaps. This directive aims to prevent undetected cracks that could lead to structural failure of the flaps.
What changed
This directive replaces the previous non-destructive testing procedure ET-57-51-009 dated May 6, 2019, with a revised version dated March 1, 2022 or later. The revised procedure includes all necessary instructions to fully comply with the associated Airworthiness Limitation inspection requirements. The use of the incomplete earlier procedure is now prohibited.
Why it matters
For aviation professionals, this directive ensures that critical flap components are inspected thoroughly to detect potential cracks that could compromise structural integrity. Operators, maintenance organizations, and compliance teams must adopt the updated procedure to maintain airworthiness and avoid safety risks. Failure to comply could result in undetected damage and possible flap failure during flight.
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