Wing — Slat Track Corrosion and Wear
- Published
- Effective
- Replaces
- 2024-26
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must perform initial cleaning, inspection, greasing, and repairs of slat tracks within specified compliance times based on aircraft group classification. Repetitive inspections are required every 2550 flight hours or 12 months, whichever occurs first. Compliance deadlines include performing initial actions within 850 flight hours or 4 months from the AD effective date, with specific provisions for crediting prior inspections. Use the latest approved service bulletins and follow the defined procedures for inspections and repairs.
Summary
Canadian Airworthiness Directive CF-2025-61 addresses corrosion and wear issues on the slat tracks of Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500-1A11 aircraft. This directive mandates inspections, cleaning, greasing, and repairs of slat tracks to prevent potential structural damage caused by slat panel loss. It updates previous directives and incorporates revised service bulletins and alternative compliance methods.
What changed
AD CF-2025-61 updates compliance times from the previous AD CF-2024-26 to better accommodate aircraft in storage and those operated under the Low Utilization Maintenance Program. It maintains prior inspection and maintenance requirements but revises deadlines and incorporates Global AMOC AARDG-2024/A40. The directive also clarifies inspection procedures and includes credit for specific sampling service bulletins.
Why it matters
This directive is critical for operators and maintenance organizations to prevent catastrophic wing damage due to slat track corrosion and wear. It ensures that inspection intervals and maintenance procedures are appropriate for different aircraft usage profiles, including low utilization and storage conditions. Compliance helps maintain aircraft structural integrity and airworthiness, reducing safety risks and potential costly repairs.
More for Airbus BD-500 (A220 Series)
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- EASA PAD 26-112Fuselage – Mid Avionics Bay – ModificationSep 23, 2026
- EASA AD CF-2026-45Wings – Discrepant Fasteners at Wing to Fuselage Joint - AmendmentSep 11, 2026
- EASA AD CF-2026-40Time Limits/Maintenance Checks – New and Revised Airworthiness Limitations TasksSep 2, 2026
- EASA AD CF-2026-36Fuselage – Skin Assembly – Discrepant Fasteners at Air Data System Probe Doubler - Replacement
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New ADs and bulletins for Airbus BD-500 (A220 Series), summarized like this page, every Monday.