STC SA2750WE

This Certificate issued to United Air Lines, Inc.

600 Jefferson Street Houston, Texas 77002 Part 25 of the Federal Aviation Regulations.

See Type Certificate Data Sheet A20WE.

Original Product Type Certificate Number : A20WE Make: Boeing Model: 747-122 Description of Type Design Change: Modification of the Boeing 747-122 airc raft for the installation of spacer pallets in accordance with FAA Approved Drawing List No. 501, or later FAA approved revisions.

Limitations and Conditions : The approval of this change in the type design applied basically to the Boeing 747-122 airplane only. This approval should not be extended to other airc raft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously a pproved modifications will introduce no adverse effect upon the airworthiness of that aircraft. This determina tion should include consideration of significant changes in weight distribution such as an increase in the fixed dispos able weight in the fuselage. 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 : November 10, 1972

Date of issuance : September 7, 1973

Date reissued : November 30, 2011

( Signature) Haifa Haj-Eid Supervisor, Technical & Administrative Support Staff 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 1987-763-28