# STC SA6078SW-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC system 65 two axis automatic flight guidance system, Model ST-371.
- Applied: September 3, 1986
- Status date: April 17, 1998
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A1CE](https://openairdocs.org/tcds/A1CE)
- Certificate PDF: https://openairdocs.org/files/sha256/a2/ac/a2ac046798272fb22e8d733362184fdbce7495b9d8e4914edc11bcb28c40254a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D6C5A3F20AFC9A9C85256CC200569E67.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA6078SW-D

## ADs that name it (0)

None.

## Approved models (2)

- Beechcraft Corporation C23 ([TCDS A1CE](https://openairdocs.org/tcds/A1CE))
- Beechcraft Corporation C24R ([TCDS A1CE](https://openairdocs.org/tcds/A1CE))

## What the certificate says

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

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA60785W-D This certificate issued to: S-TEC Corporation One S-TEC Way Mineral Wells Municipal Airport Mineral Wells, TX 76067-9236 Certifies that the change in the type design for the following product with the limitations and conditions therefor as speriped hereon meets the aiworthiness requiements of Part 3 of the Civil is Regulations.

Original Product I ype berlipcale. Number: AICE Make: BEECH Model: C23 AND C24R Description of Type Design Change:

Installation of S-TEC System 65 Two Axis Automatic Flight Guidance System, Model ST-371, according to Bulletin No. 471, Revision 1, dated 4-15-98 and Master Drawing List No. 92386, Revision A, dated 4-15-98 with Optional Flight Director/Steering Horizon or later FAA Approved revisions of the above data (28 Volt System).

I. FAA Approved Supplemental Flight Manual, P/N 89684, dated 9-17-86 is required for Beech Model C23 or later FAA Approved revisions of the above supplement.

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

If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Date of Application: . 9-03-86 Date Reissued:

Date of sue 9-17-86 Date Amended: 4-17-98, Revision 1 By Direction of the Administrator AVIAT TOMINISTRATO William J. Thomas DAS Staff Coordinator, DAS 5 SW (Title)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA6078SW-D, Revision 1 Limitations and Conditions: (con't.)

FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89685, dated 9-17-86 is required for Beech Model C24R or later FAA Approved revisions of the above supplement.

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

71.

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

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

Signature of grantor (In ink):

## Every issue (1)

- April 17, 1998: Amended, Current. [certificate](https://openairdocs.org/files/sha256/a2/ac/a2ac046798272fb22e8d733362184fdbce7495b9d8e4914edc11bcb28c40254a)

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