Airworthiness DirectiveSupersededEASA AD CF-2022-38R1

Pneumatic – Non-Conforming Bleed Leak Detection System Sensing Elements

Superseded. Comply with CF-2023-17, which replaces this document.

Published: Aug 11, 2022
Effective: Aug 24, 2022
Deadline: Sep 25, 2022
Replaces: 2022-38

Bombardier BD-700

AI-generated summary of the official EASA document. Verify against the PDF before acting.

What to do

Operators must prohibit installation of affected sensing elements unless they have been tested and marked as serviceable. Maintenance records should be verified within 60 days of the AD's effective date to confirm installation status of affected parts. Dispatch restrictions under specified MMEL items apply 90 days after the original AD effective date, requiring specific operational checks before flight. All actions must follow the detailed procedures outlined in the AD and referenced service bulletins.

Summary

Airworthiness Directive CF-2022-38R1 is issued by Transport Canada and applies to Bombardier Inc. model BD-700-1A10 and BD-700-1A11 aeroplanes with specific serial numbers. It addresses a safety issue involving non-conforming bleed air leak detection system sensing elements that may have insufficient salt fill, potentially preventing detection of hot bleed air leaks. The directive mandates operational restrictions and maintenance actions to mitigate the risk of undetected bleed air leaks.

What changed

This revision corrects a typographical error found in the Master Minimum Equipment List (MMEL) table of the original AD CF-2022-38 issued on 13 July 2022. It maintains all previous requirements while clarifying dispatch instructions and operational procedures related to affected sensing elements. The AD remains an interim action pending further regulatory updates.

Why it matters

This directive is critical for aviation professionals as it ensures the integrity of the bleed air leak detection system, which is vital for preventing structural damage and maintaining safe flight operations. Operators and maintenance organizations must comply to avoid dispatching aircraft with potentially faulty sensing elements, thereby reducing the risk of in-flight failures. Compliance supports continued airworthiness and regulatory adherence under Canadian Aviation Regulations.

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