# STC SA2742WE-D - Type: Supplemental type certificate - Status: Current, Reissued - Holder: United Airlines Inc, United States - Description: Install dual class seating arrangement (4 and 6 across). - Applied: December 18, 1973 - Status date: November 30, 2011 - Product: Aircraft, Large Multi-Engine - Certification basis: Part 21 - Data sheets: [TCDS 4A25](https://openairdocs.org/tcds/4A25) - Certificate PDF: https://openairdocs.org/files/sha256/e0/e1/e0e191c931adb4ccf2db6661a37dbaaff19fb4bd9422fd212201819cb9d8ec92 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F79F6D82BAD653978625799E00720A25.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA2742WE-D ## ADs that name it (0) None. ## Approved models (1) - The Boeing Company DC-8-62 ([TCDS 4A25](https://openairdocs.org/tcds/4A25)) ## 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. This Certificate issued to United Air Lines, Inc. 600 Jefferson Street Houston, Texas 77002 Part 4b of the Civil Air Regulations dated December 31, 1953. 4A25 Boeing DC-8-62 Description of Type Design Change: Installs a dual class seating arrangement (4 and 6 – across) in accordance with United Air Lines Master Drawing List COA 2-4449. List COA 2-4449 fully describes this modification. Amendment installs a dual class seating arrangement (4 and 6 – across) in accordance with UAL Master Drawing List COA 2-4546. List COA 2-4546 fully describes this modification. Amendment No. 2 is an alternate all coach seating arrangement. COA 2-4734 fully describes this modification. Limitations and Conditions: This approval should not be extended to other specific airplanes of this model on which other previously a pproved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. If the holder agrees to permit another person to use this certificate to a lter the product, the holder shall give the other person written evidence of that permission. This certificate and the supporting data, which is the basis for approval, shall remain in effect until surrendered, suspended, revoked or a termination date is otherwise established by the Administrator of the Federal Aviation Administration. Date of application: December 18, 1973 Date of issuance: January 18, 1974 Date reissued: November 30, 2011 Date amended: June 20, 1974, No. 2 May 2, 1975 ( Signature) Haifa Haj-Eid Supervisor, Technical & Administrative Support Staff, Los Angeles Aircraft Certification Office (Title) NOTE: **DO NOT DELETE THIS PAGE.** **DO NOT ADD ANY DATA TO THIS PAGE.** **THIS PAGE IS FOR PAGE NUMBERING PURPOSES, PLEASE DISCARD PRINTED COPY.** ## Every issue (1) - November 30, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/e0/e1/e0e191c931adb4ccf2db6661a37dbaaff19fb4bd9422fd212201819cb9d8ec92) --- 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.