STC SE6069NM

United States of America 8103 Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SE6069NM This certificate issued to: AERO ENGINE INC.

3033 North Coolidge Avenue Los Angeles, California 90039 fart * of the Regulations.

Original Product -Type bertificate Number: * *See attached FAA Approved Model Make: List (AML) to SE6069NM for list of approved models and applicable Model: airworthiness regulations Description of Type Design Change: Removal of the inverted Flight Check Valve from Stromberg NA-R9B and NA-Y9E1 series carburetors installed on Pratt & whitney R-985 and R-1340 models engine respectively per Aero Engine Modification Instruction contained in the attached Approved Model List (AML).

Approval of this change in type design applies Limitations and Conditions: to the above model engines only. This approval should not be extended to the engine of this model on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that engine. A copy of this Certificate and FAA Approved Model List (AML) No. SA6069NM dated November 3, 1993, or later approved revision, must be maintained as part of The Perpaint herds pring he a with is se bains for appreval shull remain in fet until sur vendered, suspended, revoked, or a lermination date is otherwise established by the Administrate r of the Federal Aviation Administration .

Date of Application: July 1, 1993 Jute missued:

Date of Issuance: November 5, 1993 Jale unvended:

FEDERAL AVIATION "A. divertion at the Administrafer (Signature ) OMINISTRA TION Acting Manager, Propulsion Branch • Los Angeles Aircraft Certification Office (Title) 47 FAA FORM 8110-2 (10-68)