AD 2012-11-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron | Various | Airworthiness Directives; Aeronautical Accessories, Inc., High Landing Gear Aft Crosstube Assembly |
| aircraft | Bell | Helicopter Textron | Airworthiness Directives; Aeronautical Accessories, Inc., High Landing Gear Aft Crosstube Assembly |
Unsafe Condition
Cracked aft crosstube, which could result in collapse of the landing gear and subsequent loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Establish a life limit of 20,000 takeoffs and landings for each aft crosstube P/N 412-321-304, create a component history card or equivalent record, and replace any aft crosstube that has reached or exceeded 20,000 takeoffs and landings with an airworthy one.
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Compliance Time
Within 50 hours time-in-service (TIS) for establishing the life limit and creating the history card; within the next 450 takeoffs and landings for replacing any aft crosstube that has reached or exceeded 20,000 takeoffs and landings.
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Affected Aircraft
Aeronautical Accessories, Inc. High Landing Gear Aft Crosstube Assembly part numbers 412-321-104 and 412-321-304, installed on Agusta Model AB412 and AB412EP and Bell Model 412, 412CF, and 412EP helicopters.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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