# STC SA5033SW-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: L-3 Communications Integrated Systems LP, United States
- Description: Modification of the existing mission communications system
- Applied: March 29, 1990
- 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/sha256/96/a5/96a57addf9128603a2d5856716e27f2538ea9007b2232a5994bb0a418e75491d
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B0E062A650F3A3F986257B4A0042CFE1.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5033SW-D

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company DC-9-32 ([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 SA5033SW-D This Certificate issued to L-3 Communications Integrated Systems, L.P. USAF 10001 Jack Finney Blvd. and OC-ALC/MMAK Greenville, TX 75402 Tinker AFB, OK 73145 Part 4b of the Civil Air Regulations.

Original Product Type Certificate Number: A6WE Make : McDonnell Douglas Model : DC-9-32 Description of Type Design Change: Modification of the existing mission communications system, consisting of the replacement of the two KW-7 Crypto units with one KG-84A crypto and associated control panels; replacement of the CMT-500 TTY terminal with a Grid Computer System and replacement of the existing modems, TE-204A-4, CV-786, 960U-1 with a TE-233P-7 modem in accordance with E-Systems Sealed Drawing List SDL 7389-1, Rev. A dated 08 June 1990 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. This approval is limited to the installation made in Douglas, DC-9-32, Serial No. 47670 (AFSN 73-1682) only.

4. 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: March 29, 1990 Date reissued : April 30, 2004 Date of issuance : June 08, 1990 Date amended : March 22, 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/sha256/96/a5/96a57addf9128603a2d5856716e27f2538ea9007b2232a5994bb0a418e75491d)

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