# STC SA5309NM-D - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Northwest Airlines Inc., United States - Description: Installation of Hughes-Avicom APAX-150 worldlink passenger entertainment system. - Applied: January 16, 1995 - Status date: December 8, 2000 - Product: Aircraft, Large Airplane - Certification basis: Part 25 - Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE) - Certificate PDF: https://openairdocs.org/files/sha256/bb/4d/bb4d1aa3daec66f9dbc717413cabe89d6ad1c25ca4dc753628c7a1317e32ee5b - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID141736308120260821172317.0001 - DRS record last changed: August 21, 2026 - Page: https://openairdocs.org/stc/SA5309NM-D ## ADs that name it (0) None. ## Approved models (1) - The Boeing Company 747-200 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE)) ## What the certificate says This is OCR from the scanned FAA certificate. OCR can misread letters and numbers. United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA5309NM-D This certificate issued to: Northwest Airlines, Inc. 5101 Northwest Drive St. Paul, MN 55111-3034 Sart 25* of the Federal Aviation Regulations. *(For Certification basis, see T. C. Data Sheet A20WE) Original Product Type Cerlificate Number: A20WE Make: Boeing Model: 747-200 Series Description of Type Design Change: Installation of Hughes-Avicom APAX-150 Worldlink Passenger Entertainment System in accordance with Lockheed Aircraft Service Company Master Drawing List R54040007, Rev. -, dated January 31, 1995 or later FAA approved revisions. Limitations and Conditions: The approval of this change in type design applied to Boeing Model 747- 200. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effects upon the airworthiness of the aircraft. This determination should include 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 to alter the product, the holder shall give the other person written evidence of that permission. Date of Application: January January 1995 Date Reissued: June 1, 1998, December 8, 2000 Date of Issuance: January 31, 1995 Date Amended: FEDERAL AVIATION By Direction of the Administrator Manager, Technical & Admin. Support Staff (Signature) TOMINISTRATO Los Angeles Aircraft Certification Office (Title) ## Every issue (1) - December 8, 2000: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/bb/4d/bb4d1aa3daec66f9dbc717413cabe89d6ad1c25ca4dc753628c7a1317e32ee5b) --- 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.