Airworthiness Directives (ADs)
CAA-2025-04-014A
The aircraft owner or operator shall comply with Airworthiness Directives issued by the CAA or the aeronautics authority of the State of Design (SoD) of the aviation products, appliances and parts, and take all necessary actions thereto.
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Issue Date
- 2025/12/05
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Applicability
- Bell Textron Canada Limited (BTCL) model 407 helicopters, All Serial Numbers
Bell Textron Canada Limited (BTCL) model 427 helicopters, All Serial Numbers
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Model Number
- Bell 407, 427 helicopters.
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CAA AD Number
- CAA-2025-04-014A
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Aeronautics Authority of Original AD
- Transport Canada Civil Aviation
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Original AD Number
- CF-2025-21R1
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Effective Date
- 2025/12/01
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Subject
- Main Rotor – Expandable Blade Bolt incorrect heat treatment
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Reference Publications (Revision/ATA/SB)
- Supersedes AD CF-2025-21(CAA-2025-04-014), issued 22 April 2025
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Remarks
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Download
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