STC SA4134NM

Number SA4134NM

This certificate, issued to Rockwell Collins, Inc.

27300 SW Parkway Ave Wilsonville, OR 97070

Part 25 of the Federal Aviation Regulations.

Original ProductType Certificate Number: A3WE Make: Boeing Model: 727-200

Description of the Type Design Change: Installation of a Flight Dynamics, Inc. Head Up Display Guidance System with Windshear Detection and Guidance, Model 1000WS, in accordance with the Alaska Airlines Engineering Order 3-34-30-373, Revision C, and Flight Dynamics Document 1000-080, Revision E2, or later Federal Aviation Administration approved revisions. The Model 1000WS installation is approved in an inoperative status only.

Limitations and Conditions: The approval of this change applies to the aircraft model 727-200 S/N 21458 only and should not be extended to other specific models of these airplanes on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any of those previously approved modifications will introduce no adverse effect upon the airworthiness of that airplane.

A copy of this certificate shall be maintained as part of the permanent records for this 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: October 21, 1987 Date reissued: 6/13/05; 1/21/10; 3/7/12 Date of issuance: November 2, 1987 Date amended:

(Signature)

Acting Manager, Seattle Aircraft Certification Office (Title)