# AD 74-09-06: Fuel Restrictor Fitting

- Type: Airworthiness directive
- Status: Current
- Products: Revo Lake LA-4-200
- Effective: May 10, 1974
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-1826
- Registered aircraft: 139 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1FB429F74E3F39E086256A5400469ECA.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/74-09-06

## The airworthiness directive

74-09-06 CONSOLIDATED AERONAUTICS: Amendment 39-1826. Applies to all Model LA-4-200 airplanes through Serial Number 601.

Compliance required, unless already accomplished, within the next twenty-five (25) hours time in service after the effective date of this AD. To preclude the possibility of engine stoppage resulting from contamination in the fuel injector, accomplish the following:

1. Inspect the restrictor fitting, P/N 2-6750-41, to determine if it has a flush or recessed insert in accordance with Lake Aircraft, Division of Consolidated Aeronautics, Service Bulletin No. B51, or later FAA approved revision.

2. If the restrictor fitting has a recessed insert, no further action is required.

3. If the restrictor fitting has a flush insert, accomplish the following:

a. Disassemble and clean the areas of the fuel injector specified in Lake Aircraft, Division of Consolidated Aeronautics, Service Bulletin No. B51, or later FAA approved revision or by FAA approved equivalent method.

b. Remove the restrictor fitting and replace with P/N 2-6750-83, or later FAA approved equivalent.

4. Equivalent methods of compliance must be approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, New England Region.

The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to the Chief Engineer, Lake Aircraft, Division of Consolidated Aeronautics, Inc., P. O. Box 312, Sanford, Maine 04073. These documents may also be examined at the Office of the Regional Counsel, New England Region, FAA, 12 New England Executive Park, Burlington, Massachusetts 01803 and at FAA Headquarters, 800 Independence Avenue, S.W., Washington, D.C. A historical file on this AD which includes theincorporated material in full is maintained by the FAA at its headquarters in Washington, D.C., and at the New England Regional Office in Burlington, Massachusetts.

This amendment becomes effective May 10, 1974.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 1A13](https://openairdocs.org/tcds/1A13): Revo Incorporated; names 1 of 7 models: Lake LA-4-200

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 139 (139 by airframe model, 0 by engine model)
- Makers: Consolidated Aeronautics 139

Models with the most aircraft:

- [Consolidated Aeronautics LAKE LA-4-200](https://openairdocs.org/model/consolidated-aeronautics-lake-la-4-200): 139 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/74-09-06/models.md
Every aircraft: https://openairdocs.org/ad/74-09-06/aircraft.md

Its text cites no advisory circulars or STCs.

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