# STC ST00015LB-D - Type: Supplemental type certificate - Status: Current, Reissued - Holder: United Airlines Inc, United States - Description: Convert 747-100 series aircraft to a two class (first and economy) aircraft with a seat count of 42F-408Y. Modification removes all Connoisseur Class seats in B and C zones and replaces them with re-pitched economy seats. Class dividers in C-zone are removed. One video projector in C-zone is removed, and the remaining projector in C-zone is relocated forward. First class seats are replaced and re-pitched. New first class seats have manual footrests vs. electric footrests on the old seats. Re-wire flight attendant call system and install a fourth PA amp. This modification was accomplished in accordance with United Air Lines DAS-1-WE Approved Master Drawing List No. 00015 dated March 5, 1996, or later FAA approved revisions. - Applied: January 24, 1996 - Status date: November 30, 2011 - Product: Aircraft, Large Multi-Engine - Certification basis: Part 21, Part 25 - Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE) - Certificate PDF: https://openairdocs.org/files/sha256/a2/64/a264bd8144a15f34dc20e1cc0104b2d01f0c00cda6bb4f2c63e36e09b1782a3d - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/037B248E4799CE2C86257995006854B7.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/ST00015LB-D ## ADs that name it (0) None. ## Approved models (1) - The Boeing Company 747-100 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. This Certificate issued to United Air Lines, Inc. 600 Jefferson Street Houston, Texas 77002 Part 25 of the Federal Aviation Regulations. See Type Certificate Data Sheet A20WE for Special Conditions. A20WE Boeing 747-100 series Description of Type Design Change: Convert 747-100 series aircraft to a two class (first and economy) aircraft with a seat count of 42F-408Y. Modification removes all Connoisseur Class seats in B and C zones and replaces them with re-pitched economy seats. Class dividers in C-zone are removed. One video projector in C-zone is removed, and the remaining projector in C-zone is relocated forward. First class seats are replaced and re-pitched. New first class seats have manual footrests vs. electric footrests on the old seats. Re-wire flight attendant call system and install a f ourth PA amp. This modification was accomplished in accordance with United Air Lines DAS-1-WE Approved Master Drawing List No. 00015 dated March 5, 1996, or later FAA approved revisions. Limitations and Conditions: This approval should not extended to ot her aircraft of this model on which other previously approved modifications are incorporat ed unless it is determined by the installer that the interrelationship between this cha nge and any of those other previ ously approved modifications will introduce no adverse effect upon the airworthiness of th at aircraft. This determination should include consideration of significant changes in weight dist ribution such as an increase in the fixed disposable weight in the fuselage. If the holder agrees to perm it another person to use this certificate to alter 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: January 24, 1996 Date of issuance: March 5, 1996 Date reissued: November 30, 2011 ( 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/a2/64/a264bd8144a15f34dc20e1cc0104b2d01f0c00cda6bb4f2c63e36e09b1782a3d) --- 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.