# STC SA2392WE - Type: Supplemental type certificate - Status: Current, Reissued - Holder: United Airlines Inc, United States - Description: Modification of the Boeing 747-122 airplane by the installation of turbulent air tether system comprised of Fairchild Hiller Food Service Carts P/N 802000, 803000, and 804000 with restraint system installed and U.O.P. Aerotherm seats with restraint seats with restraint attach points incorporated - Applied: November 4, 1970 - 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/sha256/9f/86/9f865a050f1a86c9731c247a9970d961bce17f6d966978ef38ceb05817a98b05 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C861A3186DBCE42F8625799800662510.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA2392WE ## 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. 600 Jefferson Street Houston, Texas 77002 Part 25* of the Federal Aviation Administration. * (See Type Certificate Data Sheet A20WE). A20WE Boeing 747-122 Description of Type Design Change: Modification of the Boeing 747-122 airplane by the installation of turbulent air tether system comp rised of Fairchild Hiller Food Service Carts P/N 802000, 803000, and 804000 with restraint system insta lled and U.O.P. Aerotherm seats with restraint seats with restraint attach points incorporated in accordance with FAA Approved United Air Lines Drawing List entitled “Turbulent Air Restraint Food Service Carts”. Limitations and Conditions: This approval of this change in type design applies basically to the Boeing 747-122 airplane only. This approval should not be extended to other aircraft of this model on which other previously approved m odifications are incorporated unless it is determined that the interrelationship between th is change and any of those other previously approved modifications will introduce no adverse eff ect upon the airworthiness of that aircraft. This determination should include consideration of significant changes in weight distribution such as an increase in the fix disposable weight in the fuselage. If the holder agrees to permit another person to use this certificate to alter th e 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 4, 1970 Date of issuance: August 17, 1971 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/sha256/9f/86/9f865a050f1a86c9731c247a9970d961bce17f6d966978ef38ceb05817a98b05) --- 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.