AD 2011-10-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Agusta S.p.A. Model AB412 Helicopters |
Unsafe Condition
A missing lock pin in the rescue hoist hook assembly may cause the loss of the hoist hook and any load.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the rescue hoist hook assembly for the presence of an identification plate marked 'BT 412-124'. If the plate is not present, review maintenance records to determine the hook assembly's date of manufacture. If the hook assembly was manufactured on or before March 31, 2008, or the date cannot be determined, replace the hook assembly with an airworthy one manufactured after April 2, 2008, or one with the identification plate installed.
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Compliance Time
Before further flight
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Affected Aircraft
Agusta S.p.A. Model AB412 helicopters with rescue hoist assembly, part number BL-10300-60 or 412-8800-01-315, and rescue hook assembly, part number S6150-61090-1 or 412-8800-05-101, installed.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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