# STC SA6059SW-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC system 60 single axis automatic flight guidance system Model ST-020.
- Applied: February 27, 1986
- Status date: October 12, 1992
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A15](https://openairdocs.org/tcds/1A15)
- Certificate PDF: https://openairdocs.org/files/sha256/ab/90/ab90fe9359cd25369922fdf3e99c5fa07cc6df38b519c3ee5361bdc233e4958d
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5DA9D0389FB99B5185256CC200569E3E.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA6059SW-D

## ADs that name it (0)

None.

## Approved models (4)

- Piper Aircraft Inc. PA-24 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- Piper Aircraft Inc. PA-24-250 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- Piper Aircraft Inc. PA-24-260 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- Piper Aircraft Inc. PA-24-400 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))

## What the certificate says

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

Bad Sou of A aria Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA60595W-0 This certificate issued to: S-TEC Corporation 946 Pegram Wolters Industrial Park Mineral Wells, Texas 76067 conifes that the change in the lyps desiger for the following product with the limitations and conditions shonfor as specified hereon meets the sinworthiness requirements of Port 3 of the CiVil Air Rogulations Original Product Type Contificato Numben: 1A15 Make: Piper Model: PA-24 (PA-24-180), PA-24-250, PA-24-260, Dascription of Type Design Changs: and PA-24-400 Installation of S-TEC System 60 Single Axis Automatic Flight Guidance System, Model ST-020, according to Bulletin No. 123, Revision 6, dated 8-28-92 and er ta volt system Master Drawing List No. 9242, Revision F, dated 8-28-92 and/or later FAA Approvec revisions of the above data Limitations and Conditions:

Also eligible on Models PA-24 (PA-24-180), PA-24-250, and PA-24-260 When Modified In Accordance With STC SA4-1351 or STC SA4-1235 As Applicable (Wing Tip Tanks).

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

Thomas (Title)

This certificate may be transferred in accordance with FAR 21.17.

FAn 786 8110-2 (10-681

Uniced Staces of Suerra Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA60595W-D, Revision 2 Limitations and Conditions: (con't.)

2. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 8946-3, dated 4-09-86 is required for Piper Models PA-24 (PA-24-180), PA-24-250 and PA-24-260, S/N 24-4803 and Below (Except S/N 24-4783) And The Above Models When Modified In Accordance With STC SA4-1351 or STC SA4-1235 As Applicable (Wing Tip Tanks) and/or later FAA Approved revisions of the above supplement.

FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 8946-4, dated 10-12-92 is required for Piper Models PA-24 (PA-24-180), PA-24-250, and PA-24-260 And The Above Models When Modified In Accordance With STC SA4-1351 or STC SA4-1235 As Applicable (Wing Tip Tanks) and/or later FAA Approved revisions of the above supplement.

4. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89651, dated 4-09-86 is required for Piper Model PA-24-400 and/or later FAA Approved revisions of the above supplement.

5. Compatibility of this modification with other previously approved modifications must be determined by the installer.

Ins aiteration of this ceruficals is punishable by a fine of not exceeding $1,000, or imprisonment not exceeding 3 years, or hath FAA FORM B110L2-1 (10L69) This certificate may be transferred in accordance with F:IH :1.17 PAGE 2 OF 2 PAGES

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Yumber and streel) (City, Stake, and 2IP code) from (Name of grantor) (Print or sype) (Address of grantor) (Number and sireel ;

(City, Stake, and ZIP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink): -

## Every issue (1)

- October 12, 1992: Amended, Current. [certificate](https://openairdocs.org/files/sha256/ab/90/ab90fe9359cd25369922fdf3e99c5fa07cc6df38b519c3ee5361bdc233e4958d)

---
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.