Equipment / Furnishings — Fixed Emergency Locator Transmitter
- Published
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- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Affected operators must replace the fixed ELT part number 51090170-1 with part number 51090130-2 following Airbus Canada Service Bulletin BD500-256006 Issue 003 or later approved revisions. This replacement must be completed within 48 months from the effective date of May 22, 2023, unless already accomplished. Maintenance personnel should verify compliance and document the replacement accordingly.
Summary
Canadian Airworthiness Directive CF-2023-31 addresses the fixed Emergency Locator Transmitter (ELT) installation on Airbus Canada Limited Partnership aircraft models BD-500-1A10 and BD-500-1A11. The directive applies to specific serial numbers of these models and mandates changes to the ELT equipment to enhance safety. It focuses on replacing the existing ELT part number 51090170-1 with a new part number 51090130-2 to prevent fire risks associated with lithium battery thermal runaway.
What changed
CF-2023-31 introduces a requirement to replace the fixed ELT part number 51090170-1 with a new ELT part number 51090130-2 that does not rely on outside air cooling to mitigate thermal runaway risks. This is a new regulation prompted by a design review revealing that the original ELT design could lead to uncontrolled fires compromising aircraft structural integrity. The directive also provides credit for prior replacements done under earlier Airbus Canada service bulletins.
Why it matters
This directive is critical for aviation professionals because it addresses a significant safety risk related to lithium battery thermal runaway in fixed ELTs. Operators and maintenance organizations must ensure compliance to prevent potential fires that could damage aircraft structure and jeopardize flight safety. Compliance teams need to track and implement the mandated ELT replacement within the specified timeframe to maintain airworthiness certification.
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New ADs and bulletins for Airbus BD-500 (A220 Series), Canada BD-500-1A10 and Canada BD-500-1A11, summarized like this page, every Monday.