EASA AD CF-2022-39: Pneumatic — Discrepant Fastener Used in Pre-Cooler Clamp Installation | RegNotify

Airworthiness DirectiveEASA AD CF-2022-39

Pneumatic — Discrepant Fastener Used in Pre-Cooler Clamp Installation

Published: Jul 19, 2022
Effective: Aug 1, 2022
Deadline: Aug 1, 2025

Bombardier BD-700 2A12

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

What to do

Operators of affected Bombardier BD-700-2A12 aircraft must inspect the pre-cooler clamps and replace any discrepant clamps following Bombardier Service Bulletin 700-36-7504. These actions must be completed within 36 months from the AD's effective date of August 1, 2022, unless already accomplished.

Summary

Canadian Airworthiness Directive CF-2022-39 addresses a discrepant fastener used in the pre-cooler clamp installation on Bombardier Inc. model BD-700-2A12 aircraft, specifically serial numbers 70032, 70047 through 70056, 70058 through 70061, and 70063 through 70075. The directive mandates inspection and replacement of non-conforming pre-cooler clamps to ensure proper environmental control system function. This AD aims to prevent clamp failure that could lead to excessive leakage and potential loss of the environmental control system.

What changed

This new Airworthiness Directive introduces a requirement for inspecting the pre-cooler clamps on affected Bombardier BD-700-2A12 aircraft and replacing any clamps that do not conform to the specified drawings. It addresses a supplier disclosure regarding non-conforming clamp assemblies that may compromise the environmental control system's integrity.

Why it matters

For aviation professionals, this directive is critical to maintaining the environmental control system's reliability and safety. Operators and maintenance teams must ensure compliance to prevent increased cabin temperatures or complete ECS failure, which could impact passenger comfort and aircraft safety. Timely adherence helps avoid operational disruptions and regulatory penalties.

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