Transport Canada — Airworthiness Directive (CAWIS)
Transport Canada — Airworthiness Directive (CAWIS) 2025-0297R1: Oxygen – portable breathing equipment – removal from service. Applies to AEROSPACE & DEFENCE OXYGEN Portable Breathing Equipment. Oxygen (ATA 35). Issued 10 Feb 2026.
Sources: EASA, FAA, Transport Canada and the UK CAA — official safety advisories and notices, linked to the issuing authority. Informational only; consult the original document for current requirements.
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