STC ST09805AC

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

Number: ST09805AC 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 A16WE Model: 737-800 Series Description of Type Design Change:

737-800 GBO Slimline Lavatory and Economy Class Seats (Non-HIC Compliant) in accordance with United Airlines Master Drawing List 2520DA14030 Revision A, dated June 29, 2015 or later FAA approved revision .

Instructions for Continued Airworthiness, Document Number 2500R01168C Revision 1, dated June 25, 2015 and EWIS Source Document, Document Number N0499-D79, dated April 22, 2015 or later FAA approved revisions are required for this installation. No AFM Supplement 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.

3) Prior installation of United Airlines, Inc. Supplemental Type Certificate ST09674AC-D or equivalent is required for the installation of this STC.

Date of Application: April 7, 2015 Date Reissued: February 1, 2016; August 5, 2017 Date of Issuance: July 6, 2015 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: ST09805AC 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: ST09805AC

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 A16WE.

b. The certification basis for parts changed or affected by this modification since the reference application date April 14, 2014, is based upon the type certification basis shown in TCDS A16WE with the following exceptions.

14 CFR Part Amdt 14 CFR Part Amdt

25.783 (j) 88 25.1365 123

25.853 (a)(d)(e)(f)(g)(h) 83

c. The modification certification basis also includes Special Conditions Number 25-358-SC, dated August 9, 2007.

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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: ST09805AC

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: ST09805AC

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: ST09805AC