# STC SA5207SW-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 50 two axis automatic flight guidance system Model ST-191-50.
- Applied: August 1, 1983
- Status date: December 10, 1993
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-777](https://openairdocs.org/tcds/A-777)
- Certificate PDF: https://openairdocs.org/files/sha256/f3/b1/f3b19aaf3889f74a1ba41125da2f9e9173f4edcd90bf491597e7e2eeee137221
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/11E1F1853856C1FE85256CC200122784.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5207SW-D

## ADs that name it (0)

None.

## Approved models (5)

- Beechcraft Corporation C35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Beechcraft Corporation D35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Beechcraft Corporation E35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Beechcraft Corporation F35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Beechcraft Corporation G35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

Brind Sens d 9acia Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number 5A520754-0 This certificate issued to: S-TEC Corporation 946 Pegram Wolters Industrial Park Mineral Wells, Texas 76067 Certifies that the change in the type design for the following pooduct with the limilations and conditions shorefor ss specified hereon meets the sinworthiness requiromeo's of Post 3 of the CIVII Air Regulations Original Product -Type bonificato Numben: A-777 Make: ВЕЕСН Model: C35, D35, E35, F35, AND G35 Description of Type Design Change:

Installation of S-TEC System 50 Two Axis Automatic Flight Guidance System, Model ST-191-50, according to Bulletin No. 291, dated 7-25-83 and Master Drawing List No. 92218, dated 7-25-83 or later FAA Approved revisions of the above data (14 Volt System).

1. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89261, dated 9-16-83 is required for S-TEC System 50 for Beech Models C35, D35, E35, F35, and G35 or later FAA Approved revisions of the above supplement.

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

9-16-83 Date Amended: 12-10-93, Revision 1

FEDERA AVIATION DHINISTRATIO WiTTiam J. Thomas DAS Staff Coordinator, DAS 5 Sw (Title)

17.

PAN FoR 81 10-8 (10-68)

TRANSFER ENDORSEMENT 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):

U.5. GOVERNMENT PRINTING OFFICE: 1966 OF OF-205-579

## Every issue (1)

- December 10, 1993: Amended, Current. [certificate](https://openairdocs.org/files/sha256/f3/b1/f3b19aaf3889f74a1ba41125da2f9e9173f4edcd90bf491597e7e2eeee137221)

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