Engine – Airplane Flight Manual (AFM) Non-Normal Procedure – Engine Bleed Duct Large Leak
Superseded. A newer version replaces this document.
- Published
- Effective
- Deadline
- Replaces
- 2025-12
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must amend the applicable AFM by incorporating the specified procedures from Master AFM Issue 023 or later approved revisions within 90 days of the effective date. Flight crews must be informed of these changes and operate the aircraft accordingly. The effective date for compliance is 2024-09-10.
Summary
Canadian Airworthiness Directive CF-2024-30 is issued for Airbus Canada Limited Partnership BD-500-1A10 and BD-500-1A11 aircraft equipped with Pratt & Whitney PW1500G engines. It addresses a software protection logic issue related to large leaks in the engine bleed duct that could lead to dual engine failure. The directive mandates updates to the Airplane Flight Manual (AFM) non-normal procedures to include manual isolation of the opposite engine in such events.
What changed
This directive introduces a revised non-normal procedure in the Master AFM, specifically incorporating the "L ENG EXCEEDANCE (Caution)" and "R ENG EXCEEDANCE (Caution)" procedures from Master AFM Issue 023 or later revisions approved by Transport Canada. It corrects a previously impaired software logic that failed to automatically isolate the opposite engine during a large bleed duct leak.
Why it matters
This AD is critical for aviation professionals as it mitigates the risk of dual engine failure caused by a bleed duct leak, enhancing flight safety. Operators and maintenance teams must ensure the AFM is updated and flight crews are trained on the new manual isolation procedures. Compliance ensures adherence to Canadian Aviation Regulations and prevents unsafe flight conditions.
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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.