# STC ST09728AC - Type: Supplemental type certificate - Status: Current, Reissued - Holder: United Airlines Inc, United States - Description: KID Seat Power Installation Utilizing the Armstrong Aerospace Powerbar Onboard Boeing 747-400 Aircraft - Applied: May 19, 2013 - Status date: July 8, 2017 - Product: Aircraft, Large Airplane - Certification basis: Part 21, Part 25 - Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE) - Certificate PDF: https://openairdocs.org/files/sha256/5d/bc/5dbc9322edf6a3db2ac0de7de031c33d3798c3c188ff5352cf91c0b30e389780 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/50C0043BAE5FBFC38625822D004DACC9.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/ST09728AC ## ADs that name it (0) None. ## Approved models (1) - The Boeing Company 747-400 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE)) ## What the certificate says Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record. FAA Form 8110-2 (5/14) Page 1 of 3 Number: ST09728AC 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 A20WE Model: 747-400 Series Description of Type Design Change: KID Seat Power Installation Utilizing the Armstrong Aerospace Powerbar Onboard Boeing 747 -400 Aircraft in accordance with United Airlines Master Drawing List 2525DA13460 Revision A, dated April 4, 2014 or later FAA approved Revision. Instructions for Continued Airworthiness, Document Number 2500R01173 Revision A, dated March 4, 2014 and EWIS Source Document DC113-9112-00 Revision C, dated March 28, 2014 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. Date of Application: May 19, 2013 Date Reissued: February 1, 2016; July 8, 2017 Date of Issuance: April 10, 2014 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: ST09728AC 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: ST09728AC 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 A20WE. b. The certification basis for parts changed or affected by this modification since the reference application date May 19, 2013, is based upon the type certification basis shown in TCDS A20WE with the following exceptions. 14 CFR Part Amdt 14 CFR Part Amdt 25.305 (a)(b) 23 25.1351 (a)(1)(2)(b)(5) 72 25.853 (a)(d) 116 25.1353 (a)(c) 123 25.869 (a)(4) 113 25.1431 (a)(c)(d) 113 25.981 (a)(3) 125 25.1585 (a)(b) 105 25.1307 (c) 72 --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: ST09728AC 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: ST09728AC 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: ST09728AC ## Every issue (2) - July 8, 2017: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/5d/bc/5dbc9322edf6a3db2ac0de7de031c33d3798c3c188ff5352cf91c0b30e389780) - April 10, 2014: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/6d/34/6d340375e02901742ea175ccd2c21b4d744d18121589395d01c200e768e2b3c4) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.