# STC SA7810SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC two axis automatic flight guidance system Model ST-479 with Optional Automatic Electric Trim System
- Applied: January 8, 1992
- Status date: January 23, 1992
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 5A4](https://openairdocs.org/tcds/5A4)
- Certificate PDF: https://openairdocs.org/files/sha256/dd/8b/dd8bb31a4472ac3f036eb7c5bf74d56c1756f4b1782e8a3646578ac37be7fe4a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3D941E4C1981507285256CC20056A4BB.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA7810SW-D

## ADs that name it (0)

None.

## Approved models (10)

- Raytheon Aircraft Company D50 (L-23E) ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Raytheon Aircraft Company D50A ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Raytheon Aircraft Company D50B ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Raytheon Aircraft Company D50C ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Raytheon Aircraft Company D50E ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Raytheon Aircraft Company E50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Raytheon Aircraft Company F50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Raytheon Aircraft Company G50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Raytheon Aircraft Company H50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Raytheon Aircraft Company J50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))

## What the certificate says

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

Brital Sams & Arcia Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA781054-0 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 product with the limitations and conditions shorefor su specified hereon meets the sinworthiness requiremonts of Pant 3 sf the CIVil Air Rogulations Original Product -Type Certificato Numben: 5A4 Make: BEECH Model: DSU, 0SUA, 030B, 050C, 050E, E50, F50, Description of Type Design Change: G50, H50, and J50 Installation of S-TEC System 60 Two Axis Automatic Flight Guidance System, Model ST-479, with Optional Automatic Electric Trim System, according to Bulletin No.

579, dated 1-06-92 and Master Drawing List No. 92554, dated 1-06-92 with Optional Flight Director/Steering Horizon and/or later FAA Approved revisions of the above data (28 Volt System).

Amit AA/DAS Approved Airplane Flight Manual Supplement, P/N 89956, dated 1-23-92 nd bonditions:

is required for Beech Models D50, D50A, D50B, D50C, and D50E and/or later FAA Approved revisions of the above supplement.

2. FAA/DAS Approved Airplane Flight Manual Supplement, P/N 89957, dated 1-23-92 is required for Beech Models E50, F50, G50, H50, and J50 and/or later FAA Approved revisions of the above supplement See continuation Sheet, Page 2, a part of this SIC.)

Thomas DAS Staff Coordinator, DAS 5 SW (Tille)

47.

**FAA 708 8110-2 (10-68)**

Aried Stars of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA78105W-D Limitations and Conditions: (con't.)

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

FAA FORM 011062-1 (10-68) This certificate may be transferred in accordance with till :1.t7.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Adaress of transferee) (Number and streel) (City, State, and ZIP code ) trom (Name of grantor) (Print or type) (Address of grantor) (Numher and streel) ( City. State, and ZIP code ) Extent of Authority (if licensing agreement):

Date of Transfer: - Signature of grantor (In ink):

## Every issue (1)

- January 23, 1992: Issued, Current. [certificate](https://openairdocs.org/files/sha256/dd/8b/dd8bb31a4472ac3f036eb7c5bf74d56c1756f4b1782e8a3646578ac37be7fe4a)

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