STC ST09814DS

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

Number: ST09814DS 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 A2NM Model: 757-222 Description of Type Design Change:

757-222 ELS/EHS/ADS-B Out (DO-260B) Installation in accordance with United Airlines Master Drawing List 3453DA14545 Revision ‘B‘, dated March 29, 2018 or later FAA approved revision.

Instructions for Continued Airworthiness, Document Number 3453R01391C, dated March 26, 2018 and AFM Supplement Number 477-14006-902, dated March 29, 2018 or later FAA approved revisions must be made available to the operator at the time of installation. There is no EWIS Source Document associated with 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 advers e 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: January 18, 2018 Date Reissued:

Date of Issuance: April 4, 2018 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: ST09814DS 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: ST09814DS

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 A2NM.

b. The certification basis for parts changed or affected by this modification since the reference application date January 18, 2018, is based upon the type certification basis shown in TCDS A2NM 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: ST09814DS

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: ST09814DS

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: ST09814DS