AD 2012-14-12

final rule
Data completeness: 70%

Airworthiness Directives; Various Restricted Category Helicopters

AD Number
2012-14-12
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2010-0488
FR Citation
77 FR 44434

Applicability

TypeManufacturerModelDetails
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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