EASA AD CF-2026-34
Water/Waste – Waste Service Panel Ball Valve Leakage - Installation
Summary
Canadian Airworthiness Directive CF-2026-34 addresses a corrosion issue caused by leakage from the waste service panel ball valve on Airbus Canada Limited Partnership (ACLP) aircraft models BD-500-1A10 and BD-500-1A11. The directive applies to specific serial numbers of these models and mandates corrective action to prevent structural damage. This directive aims to enhance aircraft safety by preventing waste water leakage that can lead to cabin pressure loss or structural failure.
What Changed
CF-2026-34 introduces a new requirement to install a permanent cap on the waste service panel ball valve to stop waste water leakage. This is a new regulation targeting corrosion issues found on certain ACLP aircraft, requiring operators to follow specific service bulletin procedures for installation.
Why It Matters
This directive is critical for aviation professionals because unaddressed corrosion from waste water leakage can cause severe structural damage and cabin pressure loss, posing safety risks. Operators, maintenance organizations, and compliance teams must ensure timely compliance to maintain airworthiness and avoid costly repairs or operational disruptions.
What To Do
Operators of affected ACLP BD-500-1A10 and BD-500-1A11 aircraft must install the waste ball valve cap according to ACLP Service Bulletin BD500-383007, Issue 001, or later approved revisions. This installation must be completed within 9800 flight hours from the effective date of 24 July 2026 unless already done.
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