AD 79-21-09 R1
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, Lake LA-4A, Lake LA-4P, and Lake LA-4-200 Airplanes |
| aircraft | Revo, Incorporated | Colonial C-2 | Airworthiness Directives; Consolidated Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4, Lake LA-4A, Lake LA-4P, and Lake LA-4-200 Airplanes |
| aircraft | Revo, Incorporated | Lake LA-4 | Airworthiness Directives; Consolidated Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4, Lake LA-4A, Lake LA-4P, and Lake 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, Lake LA-4A, Lake LA-4P, and Lake LA-4-200 Airplanes |
| aircraft | Revo, Incorporated | Lake LA-4A | Airworthiness Directives; Consolidated Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4, Lake LA-4A, Lake LA-4P, and Lake LA-4-200 Airplanes |
| aircraft | Revo, Incorporated | Lake LA-4P | Airworthiness Directives; Consolidated Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4, Lake LA-4A, Lake LA-4P, and Lake LA-4-200 Airplanes |
Unsafe Condition
Burning of power wires in case of an electrical short due to anchor light or bilge pump power lines bypassing the battery relay.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install a Cole-Hersee 3031-D fuse holder and a Buss AG5A 5 ampere fuse, or FAA approved equivalents, within 4 inches of the battery relay in the power lines for the anchor light and bilge pump. Equivalent methods of compliance may be approved upon request.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 50 hours time in service
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Affected Aircraft
Consolidated Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4, Lake LA-4A, Lake LA-4P, and Lake LA-4-200 airplanes with an anchor light or bilge pump installed with a power line bypassing the battery relay.
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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