AD 2012-14-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Robinson | Air Crane | Airworthiness Directives; Various Restricted Category Helicopters |
| aircraft | Bell | 212 and 412 | Airworthiness Directives; Various Restricted Category Helicopters |
| aircraft | Aviat | Various | Airworthiness Directives; Various Restricted Category Helicopters |
Unsafe Condition
Missing tail rotor blade tip blocks or tip closures due to adhesive bond voids or incorrect screw installation, leading to blade loss and potential helicopter loss of control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect each affected tail rotor blade tip block and tip closure for adhesive bond voids. Remove any blade with excessive voids from service. Modify certain blades by installing shear pins and tip closure rivets.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Arrow Falcon Exporters, Inc., Firefly Aviation Helicopter Services, California Department of Forestry, Garlick Helicopters, Inc., Global Helicopter Technology, Inc., Hagglund Helicopters, LLC, International Helicopters, Inc., Precision Helicopters, LLC, Robinson Air Crane, Inc., San Joaquin Helicopters, S.M.&T. Aircraft, Smith Helicopters, Southern Helicopter, Inc., Southwest Florida Aviation International, Inc., Tamarack Helicopters, Inc., US Helicopter, Inc., West Coast Fabrication, and Williams Helicopter Corporation Model HH-1K, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P Helicopters; and Southwest Florida Aviation Model UH-1B (SW204 and SW204HP) and UH-1H (SW205) 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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