STC SA2733NM-D

This Certificate issued to United Air Lines, Inc.

600 Jefferson Street Houston, Texas 77002 Part 25 of the Federal Aviation Regulations. (Ref. Type Certificate Data Sheet A20WE for Special Conditions.)

Original Product Type Certificate Number : A20WE Make: Boeing Model: 747SP Series Description of Type Design Chang e: Modifies the aircraft to install an ARINC Communication Addressing and Reporting System (ACARS). The installation is in accordance with DAS-1-WE Approved United Air Lines Drawing List No. 2733 dated November 16, 1987, or later approved revisions.

Limitations and Conditions: The approval of this installation applies basically to the 747SP series only. This approval should not be extended to other aircraft of th is model on which other previ ously approved modifications are incorporated unless it is determined by the installer th at the interrelationship betwee n this change and any of those other previously approved modifications will intr oduce no adverse effect upon the airworthiness of that 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 : May 26, 1987

Date of issuance : November 16, 1987

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