Oxygen — Crew — Leak Check of the Lavatory A Oxygen Supply Line for the Third Crew Member
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected BD-500-1A10 and BD-500-1A11 aircraft must perform the leak check of the third crew oxygen supply line and correct any deficiencies according to Airbus Canada Service Bulletin BD500-351003. This must be done before accumulating 2450 flight hours or within 12 months from the directive's effective date of June 3, 2020, whichever occurs first.
Summary
Canadian Airworthiness Directive CF-2020-17 mandates a leak check of the Lavatory A oxygen supply line for the third crew member on Airbus Canada Limited Partnership aeroplanes, specifically models BD-500-1A10 and BD-500-1A11 within specified serial number ranges. This directive addresses potential oxygen leaks that could compromise crew oxygen supply and increase fire risk. It applies to Bombardier Inc. aircraft formerly known as CSALP.
What changed
CF-2020-17 introduces a new requirement for performing a leak test on the third flight crew oxygen system supply line located in Lavatory A. This test was not performed on some aircraft during assembly, and the directive mandates corrective actions to detect and fix any leaks. The directive references Airbus Canada Service Bulletin BD500-351003 for the leak check procedure.
Why it matters
This directive is critical for ensuring the safety and integrity of the oxygen supply system for the third crew member. Undetected leaks could lead to oxygen supply failure or create an oxygen-enriched environment, increasing fire hazards. Operators, maintenance organizations, and compliance teams must address this to maintain airworthiness and regulatory compliance.
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