STC ST09824DS

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

Number: ST09824DS This certificate issued to: United Airlines 4933 Wright Rd.

Houston, TX 77032 Part 25 & 26 of the Federal Aviation Regulations Original Product – Type Certificate Number: Make: The Boeing Company A2NM Model: 757-200 Series Description of Type Design Change:

757-224 Interior Reconfiguration in accordance with United Airlines Master Drawing List 2500DA15225 Revision ‘E’, dated November 11, 2024 or later FAA approved revision.

Supplemental Instructions for Continued Airworthiness, Document Number 2500R01523C Revision ‘A’, dated October 29, 2024, EWIS ICA, Document Number DC113-9851-00 Revision ‘A’, dated September 12, 2024, and AFM Supplement, Document Number DC303-9851-00 Revision ‘A’, dated October 12, 2024, or later FAA approved revisions are 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: November 13, 2018 Date Reissued: October 24, 2019; May 27, 2021; July 27, 2021 Date of Issuance: October 9, 2019 Date Amended: December 16, 2024 By Direction of the Administrator Signature Title Raju Tumarada, 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: ST09824DS 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: ST09824DS

3) Prior or concurrent installation of the following modifications is required with this STC (aircraft applicability is identified within the following documentation):

- Boeing Service Bulletin 757-24-0089, Original Issue, dated March 15, 2001, or later FAA approved revision

- Boeing Service Bulletin 757-24-0105, Original Issue, dated October 08, 2010, or later FAA approved revision

- Boeing Service Bulletin 757-24-0121, Issue 02, dated October 08, 2010, or later FAA approved revision

- Continental Airlines, Inc. 757-200 Interior Configuration FAA STC ST09706AC-D, issued December 6, 2011, or later amendment

- Bruce Aerospace Inc. Floor Proximity Emergency Escape Path Marking System FAA STC SA3143NM, amended March 27, 1996, or later amendment

- Jamco America, Inc. Flight Deck Door FAA STC ST01150SE-D, amended May 28, 2009, or later amendment

- Delta Engineering Corporation Installation of a Panasonic Global Communication Suite System FAA STC ST03187NY, amended May 11, 2017, or later amendment 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 follow s:

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 November 13, 2018, is based upon the type certification basis shown in TCDS A2NM with the following exceptions.

14 CFR Part Amdt 14 CFR Part Amdt

25.785 25-51 25.853 25-83

25.793 25-51 25.869 25-72

25.795 25-106 25.981 25-125

25.807 25-67 25.1423 25-70

25.851 25-74

c. The modification certification basis also includes Special Conditions Number 25 -472-SC, Boeing Model 757 Series Airplanes; Seats with Non-Traditional, Large, Non-Metallic Panels, effective November 5, 2012.

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