STC SA3952WE-D

600 Jefferson Street Houston, Texas 77002

Part 4b of the Civil Air Regulations Original Product Type Certificate Number :

A3WE

Boeing

727-222 Description of Type Design Change : Modifies the aircraft to install a single Tracor VLF Omega Navigation System for navigation. The installation is in acco rdance with DAS-1-WE Approved United Air Lines Drawing List COA 7-2966, dated December 5, 1980, or later F AA approved revision. United Air Lines FAA Approved Flight Manual Supplement to Boeing Flight Manual Docu ment No. D6-8728, dated November 29, 1967, or later FAA approved revisions is required as part of this installation.

Limitations and Conditions: The approval of this change in type design applies basically to 727-222 only . This approval should not be extended to other specific airpla nes of this model on which other previously approved modifications are incorporated, unless it is determined that the interrelationship between this change and any of those other previously approved modifications will in troduce 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.

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: October 14, 1980

Date of issuance: November 11, 1980

Date reissued: November 30, 2011

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

NOTE:

DO NOT DELETE THIS PAGE.

DO NOT ADD ANY DATA TO THIS PAGE.

THIS PAGE IS FOR PAGE NUMBERING PURPOSES, PLEASE DISCARD PRINTED COPY.