# STC SA5749SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: L3Harris Technologies Integrated Systems L.P., United States
- Description: Replace existing ARC-58 high frequency communication system with AN-ARC-190 high frequency communication system.
- Applied: April 13, 1984
- Status date: May 4, 2023
- Product: Aircraft, Large Airplane
- Certification basis: Part 25
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE)
- Certificate PDF: https://openairdocs.org/files/sha256/c3/8e/c38e4735f7657d83b6114f12eaafc0bcc25ee53d5d139647a23a308d7d404811
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID107266068220231020154916.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA5749SW

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 747-200B 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.

Supplemental Type Certificate Number SA5749SW

This certificate issued to: L3Harris Technologies Integrated Systems L.P.

7500 Maehr Road Waco, TX 76705

Part 25 of the Federal Aviation Regulations.

Original Product Make: The Boeing Company Type Certificate Number: A20WE Model: 747-200B (E-4B)

Replace existing ARC-58 High Frequency Communication System with AN/ARC-190 High Frequency Communication System in accordance with Electrospace Systems, Inc. Drawing List DL-83-28200-000, Revision A, dated 7/6/84.

1. Approval is limited to Air Force Boeing Model 747-200B designated E-4B.

2. Compatibility of this modification with previously approved modifications must be determined by the installer.

3. 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: April 13, 1984 Date Reissued: April 30, 2002; May 4, 2023 Date of Issuance: July 16, 1984 Date Amended:

Signature

Title Loyd R. Hamilton ODA-750173-SW Administrator

Possession of this Supplemental Type Cert ificate (STC) document by persons other than the STC holder does not constitute rights to the design data nor to alter an aircraft, aircraft engine, or propeller.

Supplemental Type Certificate Number SA5749SW

To (Name and address of transferee)

From (Name and address of grantor)

## Every issue (2)

- May 4, 2023: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/c3/8e/c38e4735f7657d83b6114f12eaafc0bcc25ee53d5d139647a23a308d7d404811)
- April 30, 2002: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/1e/a9/1ea9b58280e7ecb704cbced30ebfb654ce6e68f853c57d1dc076e0ce6861d171)

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