# STC SA7779SW-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 60 Two Axis Automatic Flight Guidance System.Model ST-330, with Optional Automatic Electric Trim System
- Applied: September 5, 1990
- Status date: May 21, 1993
- 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/eb/66/eb663dc5d644c5763fef0730e3eaca1961752f765149d347179b7cf9f4a481b3
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C70283D3BF29F43185256CC20056A480.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA7779SW-D

## ADs that name it (0)

None.

## Approved models (3)

- Raytheon Aircraft Company 35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Raytheon Aircraft Company A35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Raytheon Aircraft Company B35 ([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.

SSotu tf 3tana of Transportation—Jfttaal 2trianon SUininistranon £uppltmcntal "Cgpc Certificate SA7779SW-D S-TEC Corporation 946 Pegram Welters Industrial Park Mineral Wells, Texas 76067 ^^^l^*^^ Civil Air A-777 Beech 35, A35, and B35 Installation of S-TEC System 60 Two Axis Automatic Flight Guidance System, Model ST-330, with Optional Automatic Electric Trim System, according to Bulletin No.

430, Revision 3, dated 4-23-93 and Master Drawing List No. 92524, Revision C, dated 4-23-93 with Optional Flight Director/Steering Horizon or later FAA Approved revisions of the above data (14 Volt System).

Also eligible on Model 35 When Modified Per STC SA1-460 (Auxiliary Wing Tip Fuel Tanks).

FAA/DAS Approved Supplemental Flight Manual, P/N 89895, dated 9-14-90 is required for Beech Model 35 And The Above Model When Modified Per STC SA1-460 (Auxiliary Wing Tip Fuel Tanks) or later FAA Approved revisions of the above supplement.

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

9-05-90 9-24-90 : 9-24-92, 5-21-93, Revision 2 J. Thomas DAS Staff Coordinator, DAS 5 SW (Title)

T\u itttifiialt may bt Iraiu/erriJ in otnrduia <M(A FAR 21.i7.

ttnicd £<aas of 3nmn department of Transportation— federal atriation administration 3upplemtntal tjpe Certificate(dantinuanon Sheet) SA7779SW-D, Revision 2 Limitations and Conditions (con't.)

3. FAA/DAS Approved Airplane Flight Manual Supplement, P/N 891027, dated 5-21-93 is required for Beech Models A35 and 835 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\ .uttrntton at :!in ^ertipcau n purushablt by ajini of not txceedintj SI,OOP, or imprisonment not exctedin^ 3 yean, at .in/*.

**.v FORM »iio.j.1 ito.«() Tf,u cirtijitati may !>t tram/ami m jceordantt aitih I'.IH .7V" PAGE 2 OF 2 PAGES

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and %IP cade) from (Name of grantor) (Print or type).

(Address of grantor) (dumber and street) ( Cilr, Slate, and ^Jif code) Extent of Authority (if licensing agreement): _ Date of Transfer:

Signature of grantor (In ink): __

## Every issue (1)

- May 21, 1993: Amended, Current. [certificate](https://openairdocs.org/files/sha256/eb/66/eb663dc5d644c5763fef0730e3eaca1961752f765149d347179b7cf9f4a481b3)

---
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.