# STC SA3594WE-D - Type: Supplemental type certificate - Status: Current, Reissued - Holder: United Airlines Inc, United States - Description: Removal of all first class seating and class divider. Relocate cabin seating to provide 14 rows at 38-inch pitch. Install sofa with end tables, lamps and privacy curtain; aft facing double seat, folding leaf table and swivel chair. Provide tables and office work area in aft cabin. Install phone systems. - Applied: November 14, 1979 - Status date: November 30, 2011 - Product: Aircraft, Large Multi-Engine - Certification basis: Part 21 - Data sheets: [TCDS A3WE](https://openairdocs.org/tcds/A3WE) - Certificate PDF: https://openairdocs.org/files/sha256/f3/45/f34560b0a1961469d890245613d88ddfe71b02dac6a9ef24bdcc069d1d8ead27 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/09301556427FEAC5862579980058902A.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA3594WE-D ## ADs that name it (0) None. ## Approved models (1) - The Boeing Company 727-200 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE)) ## 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. A3WE Boeing 727-200 Description of Type Design Change : Removal of all first class seating and class divider. Relocate cabin seating to provide 14 rows at 38-inch pitch. Install sofa with end tables, lamps and privacy curtain; aft facing double seat, folding leaf table and swivel chair. Provide tables and office work area in aft cabin. Install phone systems. Configuration in accordance with United Airlines Drawing List No. 3594 dated November 30, 1979, or later FAA approved revisions. Limitations and Conditions: The approval of this change in type design applies basically to B-727-200 aircraft only. This approval does not extend to other aircraft of this model on which other previously approved modifications are incorporated unless it is dete rmined by the installer that the interrelationship between this change and any of those other previ ously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. Th is determination should in clude consideration of significant changes in weight distribution such as an increase in the fixed disposable weight in the fuselage. If the holder agrees to permit another person to use this certificate 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: November 14, 1979 Date of issuance: November 30, 1979 Date reissued: November 30, 2011 Date amended: January 7, 1980 ( 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/f3/45/f34560b0a1961469d890245613d88ddfe71b02dac6a9ef24bdcc069d1d8ead27) --- 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.