# STC SA7195SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC Yaw Damper System, Model ST-324.
- Applied: March 15, 1989
- Status date: August 2, 1990
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A10](https://openairdocs.org/tcds/3A10)
- Certificate PDF: https://openairdocs.org/files/sha256/59/ad/59ad2cee38ef4e6ffe9211daacdaa019b266491ddc74780f1a1502840388355d
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/AB977A030548B1F785256CC20056A1F4.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA7195SW-D

## ADs that name it (0)

None.

## Approved models (4)

- The Cessna Aircraft Company 310 ([TCDS 3A10](https://openairdocs.org/tcds/3A10))
- The Cessna Aircraft Company 310A (USAF U-3A) ([TCDS 3A10](https://openairdocs.org/tcds/3A10))
- The Cessna Aircraft Company 310B ([TCDS 3A10](https://openairdocs.org/tcds/3A10))
- The Cessna Aircraft Company 310C ([TCDS 3A10](https://openairdocs.org/tcds/3A10))

## What the certificate says

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

Anita Sates d As cia Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SA7195SW-D This certificate issued to: S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, Texas 76067 Certifies that the change in the type design for the following product with the limilations and conditions thorefor as specified horeon meels the airworthiness reguirements of Port 3 of the CiVil Air Regulations Original Product - Type Contifical Numbos: 3A10 Make: CESSNA Model: 310, 310A, 310B, AND 310C Description of Type Design Change:

Installation of S-TEC Yaw Damper System, Model ST-324, according to Bulletin No.

424, Revision 1, dated 7-18-90 and Master Drawing List No. 92492, Revision A, dated 7-18-90 and/or later FAA Approved revisions of the above data (28 Volt System).

1. FAA Approved Supplemental Flight Manual, P/N 89820, dated 4-14-89 is required for Cessna Models 310, 310A, and 310B and/or later FAA Approved revisions: of the above supplement.

(See Continuation Sheet, Page 2, a part of this STC).

Holdeman DAS Staff Coordinator, DAS 5 SW (Tille)

17.

PAN FOoM 81 10-2 (10-68)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA71955W-D, Revision 1 Limitations and Conditions: (con't.)

2. FAA Approved Supplemental Flight Manual, P/N 89820-1, dated 8-02-90 is required for Cessna Models 310, 310A, 310B, and 310C 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.

88) This certificate may be transferred in accordance with fitH "1.47.

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 Z1P code) Exent of Authority (if licensing agreement) :

Signature of grantor (1n ink :

## Every issue (1)

- August 2, 1990: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/59/ad/59ad2cee38ef4e6ffe9211daacdaa019b266491ddc74780f1a1502840388355d)

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