# STC SA5123SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 60 single axis autopilot model ST-126
- Applied: October 20, 1982
- Status date: December 1, 1982
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A1EA](https://openairdocs.org/tcds/A1EA)
- Certificate PDF: https://openairdocs.org/files/sha256/f3/db/f3dbb826e5bf98b82d7a19e492779eed8c907062830e99ad695c5824cb239103
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0762BC1F9178965785256CC2001226C7.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5123SW-D

## ADs that name it (0)

None.

## Approved models (2)

- Piper Aircraft Inc. PA-30 ([TCDS A1EA](https://openairdocs.org/tcds/A1EA))
- Piper Aircraft Inc. PA-39 ([TCDS A1EA](https://openairdocs.org/tcds/A1EA))

## 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: SA51235W-D This certificate issued to: S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, TX 76067 Certifies that the change in the type design for the folowing product with the limitations and conditions therefor as specified hereon meets the airworthiness reguirements of Part 3 of the CIVIl Air Regulations.

Original Product -Typebertificate Numben: ALEA Make: PIPER Model: PA-30, PA-39 Description of Type Design Change:

installation of S-TEC System 60 Single Axis Autopilot, Model ST-126 according to Bulletin No. 226, dated 10-20-82 and Master Drawing List No. 92148, dated 10-20-82 and/or later FAA Approved revisions of the above data (14 Volt System).

FAA Approved supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89164, dated 12-1-82 is required and/or later FAA Approved revisions of the above data.

Compatability of this Modification with other previously approved Modifications must be determined by the installer.

Date of Application: 10-20-82 Date missed:

Date of Issuance: 12-1-82 Dolo amended:

FEDERAL AVIATION By Direction of the Administrator Thered N. Talleron (Signature) TAMINISTRATOS Harold W. Holdeman DAS Staff Coordinator, DAS 5 SW (Title)

FAA FOoK 8110-2 (10-68)

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 1, 1982: Issued, Current. [certificate](https://openairdocs.org/files/sha256/f3/db/f3dbb826e5bf98b82d7a19e492779eed8c907062830e99ad695c5824cb239103)

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