STC SA3590WE-D

This Certificate issued to United Air Lines, Inc.

600 Jefferson Street Houston, Texas 77002

Part 4b of the Civil Air Regulations. See T.C. Data Sheet A3WE for Special Conditions.

A3WE

Boeing

727-222 Description of Type Design Change : The cabin interior seating confi guration will change from 10F/124Y to 14F/118Y. One row of coach seats will be removed and one row of first class seats will be added. The class divider will be moved accordingly. All of th is will be accomplished in accordance with United Air Lines, DAS-1-WE, Approved Drawing List No. 3590 dated February 9, 1979, or later FAA approved revisions.

Limitations and Conditions: This approval should not be extended to other specific airplanes of this model on which other previously appr oved modifications are incorporated unless it is determined that the interrelationship between this cha nge and any of those other previ ously approved modifications will introduce no adverse effect upon the airworthiness of that airplane. 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.

This certificate and the supporting data, which is the basis for approval, shall remain in effect until surrendered, suspended, revoked or a termination date is otherwise established by the Administrator of the Federal Aviation Administration.

Date of application: December 8, 1978

Date of issuance: February 9, 1979

Date reissued: November 30, 2011

( Signature) Haifa Haj-Eid Supervisor, Technical & Administrative Support Staff, Los Angeles Aircraft Certification Office (Title)

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