EASA AD CF-2022-07: Oxygen — Oxygen Line Contamination with Sealant and Cotton Fibers | RegNotify

Airworthiness DirectiveEASA AD CF-2022-07

Oxygen — Oxygen Line Contamination with Sealant and Cotton Fibers

Published: Mar 10, 2022
Effective: Mar 15, 2022
Deadline: Mar 15, 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 verify oxygen bottle serial numbers and replace any identified contaminated bottles within 36 months from March 15, 2022. The replacement must follow Bombardier service bulletin 700-35-7502 or its approved revisions. Contact Transport Canada for further guidance if needed.

Summary

The Canadian Airworthiness Directive CF-2022-07 titled "Oxygen — Oxygen Line Contamination with Sealant and Cotton Fibers" addresses contamination issues in the oxygen supply lines of Bombardier BD-700-2A12 aircraft. This directive applies to specific serial numbers of the BD-700-2A12 model and mandates inspection and replacement of affected oxygen bottles to ensure safety and compliance.

What changed

CF-2022-07 introduces a new requirement to inspect oxygen bottle serial numbers on specified Bombardier BD-700-2A12 aircraft and replace any contaminated oxygen bottles with new or refurbished units. This action is necessary to mitigate contamination by sealant and cotton fibers that could block oxygen flow or create fire risks.

Why it matters

This directive is critical for operators and maintenance organizations as contamination in oxygen lines can reduce oxygen flow, limit available oxygen supply, and increase fire hazards. Compliance ensures the reliability of oxygen systems for crew and passengers, maintaining safety and regulatory adherence.

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