# STC SA7784SW-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 40/50 single and two axis automatic flight guidance system, Model ST-349-40/50
- Applied: December 20, 1990
- Status date: September 25, 1992
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-777](https://openairdocs.org/tcds/A-777)
- Certificate PDF: https://openairdocs.org/files/sha256/8f/7c/8f7ce822a743cb7167456142fd290a29439e86c82e07501373ea36e43af4aca2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C6F240F2A0E4983C85256CC20056A48C.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA7784SW-D

## ADs that name it (0)

None.

## Approved models (1)

- Raytheon Aircraft Company 35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))

## 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.

Btpartmrnt of Transportation —jfotoal aoiation administration Supplemental "Cgpc Certificate SA7784SW-D S-TEC Corporation 946 Pegram Wolters Industrial Park Mineral Wells, Texas 76067 i"yj4rr'^f^'f*rii8* fAf /tmffaStr***- f—-^•*r~*ff'S'f*~m.

a< yirryfaf/iYrrrrn mfrrfl ifdr UK in i iflVimd »< y imwiumi'i I^T^M / 3 j^^e. C 1 V 1 1 Air : A- 777 Beech .- 35 Installation of S-TEC System 40/50 Single and Two Axis Automatic Flight Guidance Systems, Model ST-349-40/50, according to Bulletin No. 449, Revision 1, dated 9-08-92 and Master Drawing List No. 92529, Revision A, dated 9-08-92 and/or later FAA Approved revisions of the above data (14 Volt System).

1. Also eligible on the above Model When Modified Per STC SA1-460 (Auxiliary Wing Tip Fuel Tanks) .

2. FAA/DAS Approved Supplemental Flight Manual, P/N 89901, dated 1-07-91 is required for Beech Model 35 And This Model When Modified Per STC SA1-460 (Auxiliary Wing Tip Fuel Tanks) and/or later FAA Approved revisions of the above supplement.

cfeS.ee Cpfltinua-Uon Sheet, Page 2 a, par^t of . thi s STC. }. . .. . , #, . .,. SA • i • •- r r,*-s*s*. .-— ^ j**. j*.j,j.s*~s,-..p. sfas,*. s,^.,**: **. j**. j-**,*./-^*-. f^,j>~~-.s. ^ *,js ——~,,,.~. ***. *jy*ff itnfif *"*^ 12-20-90 1-07-91 3L&.~~~6J: 9-25-92, Revision 1 William J. Thomas DAS Staff Coordinator. DAS 5 SW (Ttttt)

TAu artifieatt m*y bt IraiuferrtJ m ttarJ**cr ox/* FAR 21.17.

fAA *»• • 110- »(10-41)

Hmttd Stem of 3ncnra Bcpartment of Itansporanon— Jfatarai 3tiation administration Supplemental ICjipe Certificate(Continuation SA7784SW-D, Revision 1 Limitations and Conditions (con't.)

3. FAA/DAS Approved Supplemental Flight Manual, P/N 89902, dated 1-07-91 is required for Beech Model 35 And This Model When Modified Per STC SA1-460 (Auxiliary Wing Tip Fuel Tanks) 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.

.Im alteration of this ctrtificaU is purushablt by ajint of not exceeding SI,OOP, or imprisonment not exceeding 3 years, o «»A FOUM •nu.2-1 (1M«) Thii eirlifeatt may it irmsftrnd m aceordanti with /•".!/< .'/.•/" PAGE 2 OF 2 PAGES

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Cenificate Number to (Name of transferee) (Address of transferee) (Number and street) (Cily, State, and £1P code) from (Name of grantor) (Print or type) (Address of grantor) (.Wumhfr and street) ( C.itt. Stale, and ZJT rode) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- September 25, 1992: Amended, Current. [certificate](https://openairdocs.org/files/sha256/8f/7c/8f7ce822a743cb7167456142fd290a29439e86c82e07501373ea36e43af4aca2)

---
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.
