# STC SA5120SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC yaw damper system model ST-081
- Applied: November 5, 1982
- Status date: November 9, 1982
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A16](https://openairdocs.org/tcds/3A16)
- Certificate PDF: https://openairdocs.org/files/sha256/02/b2/02b260905f68c790bf053998f902d4c2c015b7646179c32279ca1c0ceb1c1e06
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6EAD474D2B793C8D85256CC2001226C2.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5120SW-D

## ADs that name it (0)

None.

## Approved models (2)

- Beechcraft Corporation 58 ([TCDS 3A16](https://openairdocs.org/tcds/3A16))
- Beechcraft Corporation 58A ([TCDS 3A16](https://openairdocs.org/tcds/3A16))

## 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 SA5120SW-D This certificate issued to: S-TEC •Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, TX 76067 Part 3 of the Civil Air Regulations.

Original Product -Typebertificato Number: 3A16 Make: BEECH Model: 58 and 58A Description of Type Design Change:

Installation of S-TEC Yaw Damper System, Model ST-081, according to Bulletin No. 184, Revision 1, dated 9-08-82 and Master Drawing List No. 921U1, Revision A, dated 9-08-82 and/or later FAA Approved revisions of the above data (28 Volt Limitations and Conditions:

1. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89114-1, dated 11-09-82 is required and/or FAA Approved revisions of the above supplement.

2. Compatability of this modification with other previously installed modifications must be determined by the installer.

Date of Application: 10-05-82 Date Reissued:

Dole of issuancs 11-09-82 Date Amended:

FEDERAL AVIATION By Direction of the Administrator Harold Hi Holden (Signalare) OMINIST SATIO DAS Staff Coordinator DAS 5 SW Harold W. Holdeman (Tille)

**PAA FORM 8110-2 (10-08)**

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) Date of Transfer:.

Signature of grantor (In ink):

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

## Every issue (1)

- November 9, 1982: Issued, Current. [certificate](https://openairdocs.org/files/sha256/02/b2/02b260905f68c790bf053998f902d4c2c015b7646179c32279ca1c0ceb1c1e06)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.