# STC SA7778SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC system 60 two axis automatic flight guidance system, model ST-089 with optional autotrim system.
- Applied: August 30, 1990
- Status date: April 12, 1991
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A13](https://openairdocs.org/tcds/2A13)
- Certificate PDF: https://openairdocs.org/files/sha256/f4/ef/f4efb9f462770fef975ff26c4990eb82c181f9f4dd89ee2446c8b4d93c82b8cf
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E0FC9B67AC38FFA985256CC20056A47F.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA7778SW-D

## ADs that name it (0)

None.

## Approved models (2)

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

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

Bcpartmtnt of transportation —jfotoal atriation administration Supplemental 'Cgpe Certificate SA7778SW-D S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, Texas 76067 nflVim.l . m C 1 V 1 1 Air 2A13 Piper PA-28RT-201 and PA-28RT-201T Installation of S-TEC System 60 Two Axis Automatic Flight Guidance System, Model ST-089 with Optional Autotrim System according to Bulletin No. 192, Revision 4, dated 4-08-91 and Master Drawing List No. 92131, Revision D, dated 4-08-91 with Optional Flight Director/Steering Horizon and/or later FAA Approved revisions of the above data (14 Volt System).

1. Only eligible on Model PA-28RT-201, S/N 28R-7918070 & Up and Model PA-28RT-201T, S/N 28R-7931100 & Up.

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

8-30-90 9-17-90 t ^'-

••.—*• 4-12-91, Revision 1 Wi11iam J\ Thomas DAS Staff Coordinator, DAS 5 SU(Title) Any alteration oftkit certificate it punishable by a.fine of not exceeding tl ,000, or imprisonment not exceeding 3 years, or both.

Tha etrlijieate may ftr trwufemJ in tcnrJancr urilh FAR 21.17.

United Starts of 2nmca ©epartmtnt of transportation— Jfederal 3LtJiation administration Supplemental HTgpe Certificate(Continuation £heet) SA7778SW-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 89147-1, dated 9-17-90 for Piper Models PA-28RT-201 and PA-28RT-201T and/or later FAA Approved revisions of the above supplement.

3. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89147-2, dated 4-12-91 for Piper Models PA-28RT-201, S/N 28R-7918070 & Up and PA-28RT-201T, S/N 28R-7931100 & Up and/or later FAA Approved revisions of the above supplement.

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

.I'D alteration of this certificate is punishable by afint of not exceeding tl,000, or imprisonment not exceeding 3 years, or bnth.

f AA FORM «ii*2.i (io-««) Thif catifeatt may bt trantfand in accordant! with l-'Alt .'/.•/".

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number .

to (Name of transferee) (Address of transferee) (Number and street) (City, State, and <Y/> cade) from (Name of grantor) (Print or type) (Address of grantor) (Number anrf street) ( C.'i/r. Stale, and ^IP code 1 Extent of Authority (if licensing agreement): __ Date of Transfer:

Signature of grantor (In ink):

## Every issue (1)

- April 12, 1991: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/f4/ef/f4efb9f462770fef975ff26c4990eb82c181f9f4dd89ee2446c8b4d93c82b8cf)

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