# STC SA8099SW-D - Type: Supplemental type certificate - Status: Current, Amended - Holder: L-3 Communications Integrated Systems LP, United States - Description: Installation of a six-channel secure International Maritime Satellite (INMARSAT) system with an updated Mission Communication System (MCS) consisting of five Secure Telephone Units (SELECTEL STU-III) and an updated existing Console Systems Operator console for control of the STU-III units - Applied: February 15, 1996 - Status date: March 22, 2013 - Product: Aircraft, Large Airplane - Certification basis: Part 21, Part 121, Part 129 - Data sheets: [TCDS A6WE](https://openairdocs.org/tcds/A6WE) - Certificate PDF: https://openairdocs.org/files/sha256/ac/4c/ac4cce35e34b3d00f8519d346ca6d4766aaf13b134f8115792a982298d7f8922 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6DBD0812B352A4A686257B4A0066407E.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA8099SW-D ## ADs that name it (0) None. ## Approved models (1) - The Boeing Company DC-9-32F ([TCDS A6WE](https://openairdocs.org/tcds/A6WE)) ## 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. Number SA8099SW-D This Certificate issued to L-3 Communications Integrated Systems, L.P. 10001 Jack Finney Blvd. Greenville, TX 75402 Part 4b of the Civil Air Regulations. Original Product Type Certificate Number: A6WE Make : McDonnell Douglas Model : DC-9-32F Description of Type Design Change: Installation of a six-channel secure International Maritime Satellite (INMARSAT) system with an updated Mission Communication System (MCS) consisting of five Secure Telephone Units (SELECTEL STU-III) and an updated existing Console Systems Operator console for control of the STU-III units in accordance with E-Systems Sealed Drawing List, SDL 5358-1, Revision NC dated 20 May 1996, or later FAA approved data. 1. Compatibility of this design change with previously approved modifications must be determined by the installer. 2. 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. 3. When installed, airplanes with this STC are limited to operations excluding those of an Air Carrier. Specifically, no operations under 14 CFR 121, 14 CFR 129 or any foreign Air Carrier are permitted. Date of application: 15 February 1996 Date reissued : 18 April 2002 Date of issuance : 22 May 1996 Date amended : 22 March 2013 – Amdt 1 By direction of the Administrator (Signature) Michael E. Hopper ODA-750173-SW Administrator, Alternate (Title) Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and Zip code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State and Zip code) Extent of Authority (if licensing agreement): Signature of grantor (In ink): ## Every issue (1) - March 22, 2013: Amended, Current. [certificate](https://openairdocs.org/files/sha256/ac/4c/ac4cce35e34b3d00f8519d346ca6d4766aaf13b134f8115792a982298d7f8922) --- 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.