STC SA2834WE-D

This Certificate issued to United Air Lines, Inc.

600 Jefferson Street Houston, Texas 77002

Part 4b of the Civil Air Regulations dated December 31, 1953, Amendments 4b-1 through 4b-6.

Original Product Type Certificate Number : 4A28 Make: Boeing Model: 720-022 Description of Type Design Change: Alternate 101 passenger seating configuration in accordance with United Air Lines Drawing List No. COA-4-1744 or later FAA approved revisions.

Limitations and Conditions : This approval should not be incorporated in any aircraft of this specific model on which other approved modifications are incorporated unless it is determined that the interrelationship between this change and any of those other previously approved m odifications will not introduce any adverse effect upon the airworthiness of the aircraft. A copy of this STC must be included in the permanent records of the modified 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 : March 14, 1975

Date of issuance : March 16, 1975

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