# STC SA5122SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC yaw damper system, Model ST-134.
- Applied: November 19, 1982
- Status date: July 9, 1984
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A3SO](https://openairdocs.org/tcds/A3SO)
- Certificate PDF: https://openairdocs.org/files/sha256/10/8b/108b9191b418391edf2c60510e87e01ba5b41a9de4a6870b5fd36d935f379071
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D93E2B1767F5E96985256CC2001226C5.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5122SW-D

## ADs that name it (0)

None.

## Approved models (5)

- Piper Aircraft Inc. PA-32-301 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))
- Piper Aircraft Inc. PA-32-301T ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))
- Piper Aircraft Inc. PA-32R-301 (HP) ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))
- Piper Aircraft Inc. PA-32R-301 (SP) ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))
- Piper Aircraft Inc. PA-32R-301T ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))

## 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: SA51225W-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 - Type Pertificate Number: A3SO Make: PIPER Model: PA-32-301, PA-32-301T, PA-32R-301 AND PA-32R-301T Description of Type Design Change:

Installation of S-TEC Yaw Damper System, Model ST-134, according to Bulletin No.

234, Revision 1, dated 6-01-84 and Master Drawing List No. 92157, Revision A, dated 6-01-84 and/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 89175, dated 11-29-82 is required and/or later FAA Approved revisions of the above supplement.

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

Date of Application: 11-19-82 Date Reissued: 7-9-84, Revision 1 Date of Issuance: 11-29-82 Date Amended:

EDERAL AVIATION By Direction of the Administrator (Signature) COMINI STRAIG Harold W. Holdeman DAS Staff Coordinator, DAS 5 SW (Title)

47.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA5122SW-D, Revision 1 Limitations and Conditions: (con't)

2. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89480, dated 7-9-84 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.

or both IAA FORM 81102-1 (10-69) This certificate may be transferred in accordance with HAR 21 t?

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, Stale, 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)

- July 9, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/10/8b/108b9191b418391edf2c60510e87e01ba5b41a9de4a6870b5fd36d935f379071)

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