Fuel — Distribution — Refueling Pilot Valve Fitting Interference with Rear Spar of Centre Wing Box
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Airbus Canada BD-500-1A10 and BD-500-1A11 aircraft must replace the pilot valve fittings in accordance with ACLP Service Bulletin BD500-282008, Issue No. 002 or later approved revisions. This replacement must be completed before accumulating 20,000 total flight cycles or by the effective date of 20 June 2023, whichever comes first. Compliance with the earlier Issue No. 001 of the service bulletin before the AD effective date is also acceptable.
Summary
Canadian Airworthiness Directive CF-2023-39 addresses a fuel distribution issue involving refueling pilot valve fitting interference with the rear spar of the centre wing box on Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500-1A11 aircraft. This directive mandates corrective actions to prevent potential fuel leaks and fire hazards. It applies specifically to certain serial numbers of these aircraft models.
What changed
CF-2023-39 introduces a mandatory replacement of the pilot valve fittings at the centre wing box rear spar to eliminate interference and prevent fatigue failure. This is achieved by following the instructions in ACLP Service Bulletin BD500-282008. The directive accepts previous compliance with Issue No. 001 of the service bulletin as meeting the requirements.
Why it matters
This directive is critical for aviation professionals because the interference condition can cause pilot valve fitting failure, leading to fuel leaks in the landing gear bay and increasing fire risk. Operators and maintenance teams must address this to ensure aircraft safety and regulatory compliance. Failure to comply could result in unsafe flight conditions and regulatory penalties.
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New ADs and bulletins for Airbus BD-500 (A220 Series), Canada Limited Partnership BD-500-1A10 and Canada Limited Partnership BD-500-1A11, summarized like this page, every Monday.