STC SA5454NM

This Certificate issued to AIRWELD, INCORPORATED 8167 Belvedere Avenue, Suite D Sacramento, California 95826

Part 4b* of the Civil Air Regulations.

*(Certification basis is set forth in Type Certificate Data Sheet 4A25.)

Original Product Type Certificate Number 4A25 Make : McDonnell Douglas Model : DC-8-62 Description of Type Design Change: Installation of a ground auxiliary air c onditioning system in accordance with World Auxiliary Power Company Drawing List Number 21800, Revision “NC”, dated June 5, 1991, or later FAA approved revision. FAA approved Airplane Flight Manual Supplement Document Number 218028, Revision “NC”, dated July 29, 1991, is also required as part of this installation.

Limitations and Conditions: This installation should not be incorporated in any aircraft unless it is determined that the interrelationship between this change and any previ ous 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.

Date of application : April 12, 1991

Date of issuance : July 29, 1991

Date reissued : July 16, 1997; January 5, 2000;

December 3, 2001; April 28, 2008

( Signature) Mansour Rafat Manager, Cabin Safety/Mechanical & Environmental Systems Branch Los Angeles Aircraft Certification Office ( Title)

Transfer the ownership of Supplemental Type Certificate Number

to (Name of transferee)

(Address of transferee) (Number and street)

(City, State, and ZIP Code)

from (Name of grantor) (Print or type)

(Address of grantor) (Number and street)

(City, State, and ZIP Code)

Signature of grantor (In ink):

U.S. GPO 1987-763-289