AD 74-26-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Revo, Incorporated | Colonial C-1 | Airworthiness Directives; Consolidated Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4, LA-4A, LA-4P and LA-4-200 Airplanes |
| aircraft | Revo, Incorporated | Colonial C-2 | Airworthiness Directives; Consolidated Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4, LA-4A, LA-4P and LA-4-200 Airplanes |
| aircraft | Revo, Incorporated | Lake LA-4 | Airworthiness Directives; Consolidated Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4, LA-4A, LA-4P and LA-4-200 Airplanes |
| aircraft | Revo, Incorporated | Lake LA-4-200 | Airworthiness Directives; Consolidated Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4, LA-4A, LA-4P and LA-4-200 Airplanes |
| aircraft | Revo, Incorporated | Lake LA-4A | Airworthiness Directives; Consolidated Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4, LA-4A, LA-4P and LA-4-200 Airplanes |
| aircraft | Revo, Incorporated | Lake LA-4P | Airworthiness Directives; Consolidated Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4, LA-4A, LA-4P and LA-4-200 Airplanes |
Unsafe Condition
Failure of the arms of the rudder bellcrank assembly (P/N's 2-7109-1, 2-7103-91 and 1-7103-1) leading to loss of rudder control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect the rudder bellcrank assembly per Lake Aircraft Service Letter L-50 within 10 hours' time in service after the effective date and every 100 hours thereafter. Replace assemblies with cracked or deformed arms before further flight with P/N 2-7109-1 arms of .080 inches or greater thickness.
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Compliance Time
Within 10 hours' time in service after the effective date of this AD and thereafter at intervals not to exceed 100 hours' time in service from the date of the last inspection except as provided in Paragraph (b) or until replaced in accordance with Paragraph (c)
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Affected Aircraft
Consolidated Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4, LA-4A, LA-4P and LA-4-200 airplanes through serial number 599
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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