Data / Federal rules / 2026-09381
Airworthiness Directives; Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes
The Federal Aviation Administration published this proposed rule in the Federal Register on May 12, 2026. Comments closed on June 26, 2026.
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What the agency says
The FAA proposes to supersede Airworthiness Directive (AD) 2022-25-05, which applies to certain Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500-1A11 airplanes. AD 2022-25-05 requires repetitive cleaning and greasing of all slat tracks to prevent damage or corrosion; doing repetitive inspections of the slat tracks for any damage or corrosion, and the correct application of grease; and applicable corrective actions. Since the FAA issued AD 2022-25-05, it has been discovered that previous slat track repairs required the use of inappropriate non-destructive test (NDT) methods and, therefore, may have allowed cracks to remain undetected on slat tracks that were previously repaired. This proposed AD would continue to require the actions in AD 2022-25-05 and would require a rework NDT inspection on all slat tracks previously repaired using an inappropriate NDT method. The FAA is proposing this AD to address the unsafe condition on these products.
Key facts
- Document number
- 2026-09381
- Type
- Proposed rule
- Action
- Notice of proposed rulemaking (NPRM)
- Agency
- Transportation Department; Federal Aviation Administration
- Published
- May 12, 2026
- Comments due
- June 26, 2026
- Dates
- The FAA must receive comments on this proposed AD by June 26, 2026.
- Docket
- Docket No. FAA-2026-4634; Project Identifier MCAI-2024-00508-T
- Regulation ID (RIN)
- 2120-AA64
- Code of Federal Regulations
- 14 CFR 39
- Topics
- Air transportation; Aircraft; Aviation safety; Incorporation by reference; Safety
- Pages
- 4
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Everything from the Federal Aviation Administration · Rules on air transportation · Rules on aircraft · Rules on aviation safety · Published in May 2026
Read from the Federal Register API, last updated 2026-10-24. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.