AD 76-02-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Revo, Incorporated | Lake LA-4 | Airworthiness Directives; Consolidated Aeronautics Models Lake LA-4 and Lake LA-4-200 Airplanes |
| aircraft | Revo, Incorporated | Lake LA-4-200 | Airworthiness Directives; Consolidated Aeronautics Models Lake LA-4 and Lake LA-4-200 Airplanes |
Unsafe Condition
Engine power interruption resulting from water contamination of the fuel system due to water entering the auxiliary fuel tank sumps.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install the placard 'WARNING: Auxiliary tank fuel transfer prohibited unless auxiliary tank sumps are drained free of water after each water operation.' adjacent to the auxiliary tank fuel transfer switches.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
by the effective date of this Amendment
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Consolidated Aeronautics Models LA-4 and LA-4-200 airplanes equipped with STC SA876EA auxiliary fuel tanks.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Engine Power
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_76-02-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 76-02-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Consolidated Aeronautics Models Lake LA-4 and Lake LA-4-200 Airplanes Subject: Engine Power Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/30/1976 Make: Revo, Incorporated Model: Lake LA-4 | Lake LA-4-200 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 76-02-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2494 AD NUMBER: 76-02-01 SUBJECT HEADING: Airworthiness Directives; Consolidated Aeronautics Models Lake LA-4 and Lake LA-4-200 Airplanes ACTION: SUMMARY: DATES: Effective January 30, 1976. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 76-02-01 CONSOLIDATED AERONAUTICS: Amendment 39-2494. Applies to all Model LA-4 and Model LA-4-200 airplanes equipped with STC SA876EA auxiliary fuel tanks. Compliance required, as indicated, by the effective date of this Amendment. To prevent engine power interruption resulting from water contamination of the fuel system due to water entering the auxiliary fuel tank sumps, accomplish the following: Install the following placard adjacent to the auxiliary tank fuel transfer switches: "WARNING" "Auxiliary tank fuel transfer prohibited unless auxiliary tank sumps are drained free of water after each water operation." This amendment becomes effective January 30, 1976. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_76-02-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 76-02-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Consolidated Aeronautics Models Lake LA-4 and Lake LA-4-200 Airplanes Subject: Engine Power Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/30/1976 Make: Revo, Incorporated Model: Lake LA-4 | Lake LA-4-200 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: Updated RGL applicability to match AD applicability; CAR C-11-185 AIRWORTHINESS DIRECTIVES FINAL RULES: 76-02-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2494 AD NUMBER: 76-02-01 SUBJECT HEADING: Airworthiness Directives; Consolidated Aeronautics Models Lake LA-4 and Lake LA-4-200 Airplanes ACTION: SUMMARY: DATES: Effective January 30, 1976. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 76-02-01 CONSOLIDATED AERONAUTICS: Amendment 39-2494. Applies to all Model LA-4 and Model LA-4-200 airplanes equipped with STC SA876EA auxiliary fuel tanks. Compliance required, as indicated, by the effective date of this Amendment. To prevent engine power interruption resulting from water contamination of the fuel system due to water entering the auxiliary fuel tank sumps, accomplish the following: Install the following placard adjacent to the auxiliary tank fuel transfer switches: "WARNING" "Auxiliary tank fuel transfer prohibited unless auxiliary tank sumps are drained free of water after each water operation." This amendment becomes effective January 30, 1976. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.
Related Airworthiness Directives
2013-08-14 Recurring
final ruleAirworthiness Directives; Revo, Incorporated Airplanes
Unsafe Condition: Fretting, cracking, or corrosion of the horizontal stabilizer attachment fitting, which could lead to structural failure of the fitting.
2002-21-05
final ruleAirworthiness Directives; REVO, Incorporated Models Lake LA-4, Lake LA-4A, Lake LA-4P, Lake LA-4-200, and Lake Model 250 Airplanes
Unsafe Condition: Cracks in the upper and lower wing spar doublers and angles, which could lead to wing spar failure and wing separation from the airplane.
2000-10-22
final ruleAirworthiness Directives; REVO, Incorporated Models Lake LA-4, Lake LA-4A, Lake LA-4P, Lake LA-4-200, and Lake Model 250 Airplanes
Unsafe Condition: Fatigue cracks in the wing spars, specifically at the second-most inboard wing attachment bolt hole, could result in wing separation and loss of control.
79-21-09 R1
final ruleAirworthiness 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.
