# STC SA7794SW-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC yaw damper system Model ST-466
- Applied: April 17, 1991
- Status date: January 23, 1992
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 5A4](https://openairdocs.org/tcds/5A4)
- Certificate PDF: https://openairdocs.org/files/sha256/a2/36/a23671935f5699191db66351fbd0f138fda67b8143618243b5fc7ea34c4867ee
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D97E8844D3F2C7B685256CC20056A499.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA7794SW-D

## ADs that name it (0)

None.

## Approved models (10)

- Beechcraft Corporation D50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation D50A ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation D50B ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation D50C ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation D50E ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation E50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation F50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation G50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation H50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))
- Beechcraft Corporation J50 ([TCDS 5A4](https://openairdocs.org/tcds/5A4))

## 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.

Btpartnot of transportation—federal Station administration Supplemental ICgpc Certificate isuvmver' SA7794SW-D S-TEC Corporation 946 Pegram Wolters Industrial Park Mineral Wells, Texas 76067 ^ C i V ]' 1 Air 5A4 BEECH D50, D50A, D50B, D50C, D50E, E50, F50, G50, H50' and J5° Installation of S-TEC Yaw Damper System, Model ST-466, according to Bulletin No, 566, Revision 1, dated 1-06-92 and Master Drawing List No. 92542, Revision A, dated 1-06-92 and/or later FAA Approved revisions of the above data (28 Volt System) .

FAA/DAS Approved Airplane Flight Manual Supplement, P/N 89921, dated 5-07-91 is required for Beech Models D50, D50A, D50B, D50C, and D50E and/or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Airplane Flight Manual Supplement, P/N 89958, dated 1-23-92 is required for Beech Models E50, F50, G50, H50, and J50 and/or later FAA Approved revisions of the above supplement.

tttmrrctf cr a fcrmtnaft'cn (fafff hi cfAe 4-17-91 *~u-J:

5-07-91 SL***-^: 1-23-92, Revision 1 (Senate*,) Wi11i am J. Thomas DAS Staff Coordinator, DAS 5 SU (Title)

Tkit cfrtificalt may ir traniftrrtd in tentjaaet until FAR 21.17.

fAA tatm tl 10-J (Ift-M)

ttnuni Stotn of <3aaa Btpartment of transportation—federal SOiation administration Supplemental TCgpe Certificate(Continuation $hcet) tSr<U>m&e4t SA7794SW-D, Revision 1 Limitations and Conditions (con't.)

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

alteration of this certificate is punishablt by aftni of not exceeding tl,000, or imprisonment not exceeding 3 years, or hulk.

FORM 1110.2-1 (10-M) Tha tattfieatt may bi trantftrnJ in accordant! uiith /•".!/< .'/.•/* 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 code) from (Name of grantor) (Print or type) (Address of grantor) (Nunther and street) ( C.ily. State, and ^IP code I Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- January 23, 1992: Amended, Current. [certificate](https://openairdocs.org/files/sha256/a2/36/a23671935f5699191db66351fbd0f138fda67b8143618243b5fc7ea34c4867ee)

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