# STC SA7139SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 65 two axis automatic flight guidance system, Model ST-382.
- Applied: January 22, 1987
- Status date: April 1, 1987
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A21](https://openairdocs.org/tcds/3A21)
- Certificate PDF: https://openairdocs.org/files/sha256/9d/99/9d994338c93e9aa97dbf652885275f5f8f537a53480dea7118a270ac07d8e2be
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DAF64C02E05F11FA85256CC20056A19F.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA7139SW-D

## ADs that name it (0)

None.

## Approved models (6)

- The Cessna Aircraft Company 210G ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210H ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210J ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company T210G ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company T210H ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company T210J ([TCDS 3A21](https://openairdocs.org/tcds/3A21))

## 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: SA71395W-D This certificate issued to: S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, TX 76067 Certifies that the change in the type design for the following product with the limitations and conditions thorefor as specified hereon meets the airvorthiness reguirements of Part 3 of the CiVil Air Pegulations.

Original Product Type Certificate Number: 3A21 Make: CESSNA Model: 210G, T210G, 210H, T210H, 210J AND T210J Description of Type Design Change:

Installation of S-TEC System 65 Two Axis Automatic Flight Guidance System, Model S1-382, according to Bulletin No. 482, dated 10-21-86 and Master Drawing List No.

92403, dated 10-21-86 and/or later FAA Approved revisions of the above data (14 Volt System).

1. Also eligible on Cessna Models T210G, T210H and T210J when modified in accordance with STC SA2689SW (RAM Modification).

2. FAA Approved Supplemental Flight Manual, P/N 89714, dated 4-01-87 is required and/or later FAA Approved revisions of the above supplement.

3. Compatability of this modification with other previously approved modifications must be determined by the installer.

Zebleman (Signature ) * AMINISTRAIO DAS Staff Coordinator, DAS 5 SW Harold W. Holdeman (Title)

47.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and Z1P code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and Z1P code) Exent of Authority (if licensing agreement) :

Signature of grantor (In ink) :

## Every issue (1)

- April 1, 1987: Issued, Current. [certificate](https://openairdocs.org/files/sha256/9d/99/9d994338c93e9aa97dbf652885275f5f8f537a53480dea7118a270ac07d8e2be)

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