STC SA2722NM-D

This Certificate issued to United Air Lines, Inc.

600 Jefferson Street Houston, Texas 77002

Part 25 of the Federal Aviation RlOriginal Product Type Certificate Number :

A16WE

Boeing

747-322 Description of Type Design Change: Installation of an ARINC Communications Addressing and Reporting System (ACARS) equipment in accordan ce with United Air Lines, DAS-1-WE, Approved Drawing List No. 2707 dated November 21, 1986, or later FAA approved revisions.

Limitations and Conditions: The approval of this change in type design applies only to 737-322 aircraft. This approval does not extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is dete rmined by the installer that the interrelationship between this change and any of those other previ ously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. Th is determination should in clude consideration of significant changes in weight distributi on such as increase in the fixed disposa ble weight in the fuselage.

If the holder agrees to permit another person to use th is 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: November 12, 1986

Date of issuance: November 21, 1986

Date reissued: November 30, 2011

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

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