STC SE00025EN

FAA Form 8110-2(10-68) Number SE00025EN Reissued on December 28, 2011, to supersede the original Supplemental Type Certificate, which has been lost or misplaced.

This Certificate issued to: United Technologies Corporation P r a t t & W h i t n e y D i v i s i o n 400 Main Street East Hartford, CT 06108

Part 33 of the Federal Aviation Regulations.

Original Product Type Certificate Number: E23EA

Description of Type Design Change: Installation of International Aerospace Tubes, LLC, Master Drawing List “TPC Stage 7 Cooling System”, revision NR, dated December 15, 2011, or later FAA-Approved Revisions, in accordance with the TPC Stage 7 Cooling Air System Maintenance Manual Part Number 504035, dated, July 13, 1999.

Limitations and Conditions: Compatibility of the “TPC Stage 7 Cooling System” with the General Electric Aircraft Engines CF6-45 and -50 Series, must be determined by the installer

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.

Make: General Electric Company Model: CF 6-45A, -45AZ, -50A, -50C, -50CA, -50C1, -50C2, - 50C2B, -50C2D, -50E, -50E1, -50E2, -50E2B

( Signature) Karen M. Grant Manager, Engine Certification Branch Engine Certification Office

( Title) Date of application: March 29, 1995 Date reissued: December 28, 2011

Date of issuance: January 27, 1999 Date Amended:

FAA Form 8110-2-1(10-69) Page 2 of 2