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AD/BELL 412/54 - Rescue Hoist Hook
Bell Helicopter Textron 412 Series HelicBell Helicopter Textron 412 Series Helicopters
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Bell Helicopter Textron 412 Series Helicopters
| AD/BELL 412/54 | Rescue Hoist Hook | 6/2008 DM |
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| Applicability: | All Model AB412 and AB412EP helicopters with rescue hoist part numberBL-10300-60 or part number 412-8800-01-315 installed, and equipped respectively with hook part number S6150-61090-1 or part number 412-8800-05-101; and affected hooks held as spares. |
|---|---|
| Requirement: | 1. Inspect in accordance with the instructions of Agusta Alert Technical Bulletin No. 412-124.2. Hooks stored as spare parts must be inspected in accordance with the instructions of Agusta Alert Technical Bulletin No. 412-124.Note: ENAC Emergency AD 2008-62 refers. |
| Compliance: | For Requirement 1. - Before the next flight of the helicopter after 10 April 2008, unless already accomplished; or before installation of the affected hoists/hooks on the helicopter.For Requirement 2. - Before 30 April 2008, unless already accomplished. |
| This Airworthiness Directive becomes effective on 10 April 2008. | |
| Background: | The ENAC received a report of a part number 412-8800-05-101 hook without the part number BL-1358 lock pin installed. This condition, unless corrected, could allow the retaining nut to completely unthread and release the hook. |
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David Punshon
Delegate of the Civil Aviation Safety Authority
8 April 2008