# STC SA5126SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC yaw damper system model ST-139
- Applied: December 13, 1982
- Status date: December 29, 1982
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A13](https://openairdocs.org/tcds/2A13)
- Certificate PDF: https://openairdocs.org/files/sha256/39/4e/394eb398ab3d2de0676e997a512285913b67b9221e6cf566c574380598d53334
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E3312967F8FFE41685256CC2001226CC.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA5126SW-D

## ADs that name it (0)

None.

## Approved models (2)

- Piper Aircraft Inc. PA-28R-201 ([TCDS 2A13](https://openairdocs.org/tcds/2A13))
- Piper Aircraft Inc. PA-28R-201T ([TCDS 2A13](https://openairdocs.org/tcds/2A13))

## What the certificate says

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

amoro States di guerica Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA5126SN-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 Fegulations Original Product -Type bertificate Numben: 2A13 Make: PIPER Model: PA-28R-201 AND PA-28R-201T Description of Type Design Change:

Installation of S-TEC Yaw Damper System, Model ST-139, according to Bulletin No. 239, dated 12-10-82 and Master Drawing List No. 92162, dated 12-10-82 and/or later FAA Approved revisions of the above data (14 Volt System) Limitations and Conditions:

FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89177, dated 12-29-82 and/or later FAA Approved revisions is required.

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

Date of Application: . 12-13-82 Date Reissued:

Date of Issuance: 12-29-82 Date Amended:

FEDERAL AVIATIO By Direction of the Administrator .

(Signatere).

IDM INISTRI DAS Staff Coordinator Harold W. Holdeman (Tille)

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)

- December 29, 1982: Issued, Current. [certificate](https://openairdocs.org/files/sha256/39/4e/394eb398ab3d2de0676e997a512285913b67b9221e6cf566c574380598d53334)

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