Equipment / Furnishings — Connector Not To Specification — Emergency Power Supply Unit
- Published
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- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected BD-500-1A11 aircraft must remove the specified connectors, install new compliant connectors, and perform tests on the EPSUs as outlined in Airbus Canada Service Bulletin BD500-335002, edition 001 or later approved revisions. These actions must be completed within 12 months from the directive's effective date of February 27, 2023. Contact Transport Canada Airworthiness for further guidance if needed.
Summary
Canadian Airworthiness Directive CF-2023-08 addresses a manufacturing defect in the electrical connectors of Emergency Power Supply Units (EPSU) on Airbus Canada BD-500-1A11 aircraft, serial numbers 55071 to 55074. The directive mandates corrective actions to ensure proper connector locking and prevent loss of emergency lighting. This directive applies specifically to certain Airbus Canada Limited Partnership aircraft formerly known as Bombardier Inc. models.
What changed
CF-2023-08 introduces a mandatory requirement to remove and replace non-compliant electrical connectors on EPSUs 3 and 4, followed by functional testing. Previously, Airbus Canada had issued Service Bulletin BD500-335002 recommending these actions, but compliance was not universal. This directive makes the corrective measures compulsory within a specified timeframe.
Why it matters
This directive is critical for operators and maintenance organizations to prevent potential failure of emergency power supply units due to connector loosening, which could lead to loss of emergency lighting. Ensuring compliance enhances aircraft safety and regulatory adherence, reducing risk during emergency situations. Maintenance teams must prioritize these inspections and replacements to maintain airworthiness.
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