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.