Electrical Power — Variable Frequency Generator Power-Feeder Harness Chafing Against Wheel Bins and Main Landing Gear
- Published
- Effective
- Deadline
- Replaces
- 2024-34
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected BD-500-1A10 and BD-500-1A11 aircraft must inspect the VFG power-feeder harnesses for damage and clearance issues within specified flight cycles or hours after the AD effective date of 2024-09-22. Damaged harnesses must be repaired or replaced, and harnesses must be modified to ensure proper clearance from the main landing gear. Dispatch under certain MMEL items is prohibited until compliance with inspection and modification requirements on both sides of the aircraft is confirmed.
Summary
The Electrical Power — Variable Frequency Generator Power-Feeder Harness Chafing Against Wheel Bins and Main Landing Gear is an Emergency Airworthiness Directive CF-2024-34R1 issued by Transport Canada. It applies to Airbus Canada Limited Partnership BD-500-1A10 and BD-500-1A11 aircraft, addressing chafing issues of the Variable Frequency Generator (VFG) power-feeder harnesses against wheel bins and main landing gear. The directive mandates inspections, repairs, and modifications to prevent damage that could lead to generator failures and critical system losses.
What changed
This revision CF-2024-34R1 clarifies the requirements of Part II from the previous AD CF-2024-34 without changing the core mandates. It maintains the inspection and modification requirements for affected VFG power-feeder harnesses and reinforces compliance with associated MMEL dispatch restrictions. The AD also updates instructions based on recent findings about unsupported harness lengths introduced by prior service bulletin implementations.
Why it matters
This AD is critical for aviation professionals because VFG power-feeder harness chafing can cause loss of both normal generators, risking loss of critical aircraft systems. Operators and maintenance teams must ensure compliance to avoid in-flight electrical failures and to maintain airworthiness. The directive also impacts dispatch decisions under MMEL, requiring strict adherence to prevent exacerbated risks during operations with certain inoperative items.
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New ADs and bulletins for Airbus BD-500 (A220 Series), Canada BD-500-1A10 and Canada BD-500-1A11, summarized like this page, every Monday.