STC ST09804AC

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

Number: ST09804AC 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 A28NM Model: A319-131 & A320-232 Description of Type Design Change:

A319/A320 First Class Seat and In-Seat Power System Installation in accordance with United Airlines Master Drawing List 2521DA13970 Revision ‘C‘, dated November 9, 2015 or later FAA approved revision.

Instructions for Continued Airworthiness, Document Number 2521R01263C, dated July 26, 2015 or later FAA approved revisions must be made available to the operator at the time of installation. There is no EWIS Source Document or AFM Supplement 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 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.

3) Prior installation of United Airlines, Inc. Supplemental Type Certificates ST09724AC, ST09732AC, ST09734AC or equivalent is required for the installation of this STC.

Date of Application: April 2, 2015 Date Reissued: October 26, 2017 Date of Issuance: September 19, 2015 Date Amended: November 15, 2015 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: ST09804AC 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: ST09804AC

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 A28NM.

b. The certification basis for parts changed or affected by this modification since the reference application date April 2, 2015, is based upon the type certification basis shown in TCDS A28NM with the following exceptions.

14 CFR Part Amdt 14 CFR Part Amdt

25.613 (a)(b)(d) 25-72 25.869 (a)(1)(4) 25-72

25.853 (a)(f) 25-83

c. The modification certification basis also includes Special Conditions Number 25-403-SC, dated March 9, 2010.

--END--

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: ST09804AC

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: ST09804AC

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: ST09804AC