AD 2005-12-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lake | LA-4 | Airworthiness Directives; Revo, Incorporated Models Colonial C-2, Lake LA-4, Lake LA-4A, Lake LA-4P, and Lake LA-4-200 Airplanes |
Unsafe Condition
Fatigue cracks in the horizontal stabilizer attachment fitting (part number 2-2200-21) could result in failure of the fitting, leading to loss of control of the airplane.
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Required Actions
Dye penetrant inspection of the horizontal stabilizer attachment fitting for evidence of fretting, cracking, or corrosion, with necessary replacement and modification for airplanes with less than 825 hours TIS. Replacement of fittings for airplanes with 825 or more hours TIS. Repetitive replacement of the fitting every 850 hours TIS. Repetitive visual inspections of the fitting every 50 hours TIS (or at the next annual inspection) between replacements. Submittal of a report to FAA on the findings of the initial inspection and any cracks found during repetitive inspections.
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Compliance Time
Within 12 months of the effective date (July 8, 2005)
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Affected Aircraft
Revo, Incorporated Models Colonial C-2, Lake LA-4, Lake LA-4A, Lake LA-4P, and Lake LA-4-200 airplanes with Type Certificate 1A13 (formerly held by Colonial Aircraft Company, Lake Aircraft Corporation, Consolidated Aeronautics, Inc., and Global Amphibians LLC).
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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