STC ST09714AC

FAA Form 8110-2 (5/14) Page 1 of 3

Number: ST09714AC This certificate issued to: United Airlines 600 Jefferson St.

Houston, TX 77002 Part 25 of the Federal Aviation Regulations Original Product – Type Certificate Number: Make: The Boeing Company T00021SE Model: 787-8 Series Description of Type Design Change:

B787-8 Push to Talk Switch Installation in accordance with United Airlines Master Drawing List 2350DA12306 Revision C, dated September 25, 2012 or later FAA approved revision.

Instructions for Continued Airworthiness, Document Number 2350R0 0992, dated August 6, 2012 or later FAA accepted revision is required for this installation. No AFM Supplement or EWIS Source Document is required for this modification.

1) The installation should not be incorporated in any aircraft unless it is determined that the interrelationship between this installation and any previously approved configuration will not introduce any adverse effect upon the airworthiness of the aircraft.

2) If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

Date of Application: April 26, 2012 Date Reissued: February 1, 2016; July 2, 2017 Date of Issuance: April 18, 2013 Date Amended:

By Direction of the Administrator Signature Title Patrick Ashton, STC Administrator United Airlines Organization Designation Authorization

FAA Form 8110-2 (5/14) Page 2 of 3

Transfer Endorsement Transfer the ownership of Supplemental Type Certificate Number: ST09714AC To (Name and address of transferee)

From (Name and address of grantor)

FAA Form 8110-2 (5/14) Page 3 of 3

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST09714AC

Certification Basis:

Based on 14 CFR § 21.115 and § 21.101, and the FAA policy for design changes that are not significant in FAA Order 8110.48, the certification basis for this modification is as follows:

a. The type certification basis for parts not changed or not affected by the change is shown in TCDS T00021SE.

b. The certification basis for parts changed or affected by this modification since the reference application date April 26, 2012, is based upon the type certification basis shown in TCDS T00021SE with no exceptions.

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FAA Form 8110-2 (5/14) Page 4 of 3

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST09714AC

FAA Form 8110-2 (5/14) Page 5 of 3

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST09714AC

FAA Form 8110-2 (5/14) Page 6 of 3

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST09714AC