EASA AD CF-2020-48
Environmental Control — Replacement of Incorrect Low-Pressure Distribution Supply Duct
Summary
Canadian Airworthiness Directive CF-2020-48 addresses the replacement of an incorrect low-pressure distribution supply duct in Airbus Canada Limited Partnership BD-500-1A10 aircraft, specifically serial numbers 50041 and 50042. The directive mandates inspection and replacement of the duct to ensure proper environmental control and safety. This AD aims to prevent smoke penetration into the passenger cabin in the event of an onboard fire or smoke incident beneath the cabin floor.
What Changed
This new Airworthiness Directive introduces a requirement to inspect the part number of the low-pressure distribution supply duct installed in the forward cargo compartment of affected BD-500-1A10 aircraft. If an incorrect duct is found, it must be replaced with the correct part as specified in Airbus Canada Limited Partnership Service Bulletin BD500-212003 Issue 001 or later approved revisions.
Why It Matters
This directive is critical for operators and maintenance organizations to mitigate the risk of smoke entering the passenger cabin during fire or smoke events under the cabin floor. Compliance ensures continued airworthiness and passenger safety by maintaining proper environmental control system integrity. It also helps compliance teams meet Canadian Aviation Regulation requirements related to Airworthiness Directives.
What To Do
Operators of Airbus Canada BD-500-1A10 aircraft with serial numbers 50041 and 50042 must inspect the low-pressure distribution supply duct part number within 200 flight hours from the effective date of December 3, 2020. If the duct is incorrect, it must be replaced following the procedures in the specified Airbus Canada Limited Partnership service bulletin. All actions must be completed to maintain legal compliance and aircraft airworthiness.
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