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
AI-generated summary from the source AD text. Verify against the official source before acting.
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.
Federal Register Abstract
Electrical System
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_79-21-09_R.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 79-21-09 R1 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Consolidated Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4, Lak...Show more Subject: Electrical System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 06/08/1981 Make: Revo, Incorporated Model: Colonial C-1 | Colonial C-2 | Lake LA-4 | Lake LA-4-200 | Lake LA-4A | Lake LA-4P Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 79-21-09 R1 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4128 AD NUMBER: 79-21-09 R1 SUBJECT HEADING: 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 ACTION: SUMMARY: DATES: Effective June 8, 1981. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 79-21-09 R1 CONSOLIDATED AERONAUTICS: Amendment 39-3589 is further amended by Amendment 39-4128. Applies to 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 which bypasses the battery relay. Compliance required within the next 50 hours time in service unless already accomplished. To preclude burning of power wires in case of an electrical short, 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. (Lake Aircraft Division, Consolidated Aeronautics Service Bulletin B-62 pertains to the installation required by this AD.) Upon request, an equivalent method of compliance with the requirements of this AD may be approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, New England Region. Amendment 39-3589 became effective upon publication in the FEDERAL REGISTER. This Amendment, 39-4128, becomes effective June 8, 1981. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_79-21-09_R.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 79-21-09 R1 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Consolidated Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4, Lak...Show more Subject: Electrical System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 06/08/1981 Make: Revo, Incorporated Model: Colonial C-1 | Colonial C-2 | Lake LA-4 | Lake LA-4-200 | Lake LA-4A | Lake LA-4P Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 79-21-09 R1 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4128 AD NUMBER: 79-21-09 R1 SUBJECT HEADING: 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 ACTION: SUMMARY: DATES: Effective June 8, 1981. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 79-21-09 R1 CONSOLIDATED AERONAUTICS: Amendment 39-3589 is further amended by Amendment 39-4128. Applies to 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 which bypasses the battery relay. Compliance required within the next 50 hours time in service unless already accomplished. To preclude burning of power wires in case of an electrical short, 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. (Lake Aircraft Division, Consolidated Aeronautics Service Bulletin B-62 pertains to the installation required by this AD.) Upon request, an equivalent method of compliance with the requirements of this AD may be approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, New England Region. Amendment 39-3589 became effective upon publication in the FEDERAL REGISTER. This Amendment, 39-4128, becomes effective June 8, 1981. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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