STC SE3177NM

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SE3177NM This certificate issued to: American Aviation, Inc.

10555 Airport Drive Coeur d'Alene Airport Hayden Lake, ID 83835 Certifies that the change in the type design for the following product with the limitations and conditions therefore as specified hereon meet's the airworthiness requirement's of Part 13 of the Civil Air Regulations., Original Product Type Certificate Number: E14EA Make: Textron Lycoming Model: Textron Lycoming LTIO-540-F2BD, J2B, J2BD, and TIO-540-J2B, J2BD, F2BD, AIA, AIB, A1C, A2A, A2B, A2C Description of Type Design Change: Installation of Machen, Inc., intercooler and associated systems in accordance with Machen, Inc., Report 87-1 or later FAA approved revision.

NOTE: Refer to appropriate Textron Lycoming Detail Specifications for operating limits.

Limitations and Conditions: Approval of this change in type design applies basically to the above model engines only. This approval should not be extended to other engines 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 must be maintained as part of the permanent records for the modified engine.

If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Date of Application: May 20, 1985 Date Reissued: ® September 27, 1985 Date of Issuance: July 26, 1985 Date Amended: October 19, 1995; November 1, 1998 FEDERAL AVIATION the zio HOMINIST RATION Acting Manager, Seattle Aircraft (Signature) Certification Office (Title)