STC SA5008NM

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA5008NM This certificate issued to: AIRWELD, INCORPORATED 8167 Belvedere Avenue, Suite D Sacramento, California 95826 Certifies that the change in the type design for the following product with the limitations and conditions therefor as specified hereon meet's the airworthiness requirement's of Part 4b* of the Civil Fir Pegulations.

*(Certification basis is set forth in Type Certificate Data Sheet 4A26.)

Original Product Type Certificate Number 4A26 Make: Boeing Model: 707-300C Series Description of Type Design Change: Installation of World Auxiliary Power Company (WAPCO) ground auxiliary air conditioning system in accordance with FAA approved WAPCO Drawing List Number 50000, Revision "A", dated June 10, 1990, or later FAA approved revision.

Limitations and Conditions: This installation should not be incorporated in any aircraft unless it is determined that the interrelationship between this installation and any previously approved configuration will not introduce any adverse effect upon the airworthiness of the aircraft. 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.

suspended, revoked or a termination date is otherwise established by the Administrator of the Federal Aviation Administration Date of Application: June 30, 1990 Dale reikued: July 16, 1997; January 5, 2000; December 3, 2001; April 28, 2008; April 10, 2009 Date of Issuance: September 21, 1990 Date Amended:

FEDERAL AVIATION By Direction of the Administrator (Signature) TOMINISTRATO Mansour Rafat Manager, Cabin Safety/Mechanical & Environmental Safety Branch Los Angeles Aircraft Certification Office (Title)