# STC SA6093SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 65 two axis flight guidance system, Model ST-346.
- Applied: October 10, 1986
- Status date: August 22, 1991
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE)
- Certificate PDF: https://openairdocs.org/files/sha256/0a/ee/0aee4a4727ff985bc9c0bbd27b43f83b156fe21eea06f458067126cc86d6c00c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8820C3B7880A04BF85256CC200569E8A.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA6093SW-D

## ADs that name it (0)

None.

## Approved models (6)

- The Cessna Aircraft Company 401 ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- The Cessna Aircraft Company 401A ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- The Cessna Aircraft Company 401B ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- The Cessna Aircraft Company 402A ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- The Cessna Aircraft Company 402B ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- The Cessna Aircraft Company 402C ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))

## What the certificate says

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

Brita Same & Sain Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SA6093SW-D This certificate issued to: S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral wells, lexas /60b/ Certifies that the change in the type design for the folowing produd with the limitations and conditions therefor as specifed hereon meets the sinworthiness reguirments of Port 3 of the CiVIl Air Regulations Original Product -Type Contificato Numbon: ATCE Make: Cessna Model: 401, 401А, 4018, 402А, 402В, and 402С Description of Type Design Change:

Installation of S-TEC System 65 Two Axis Automatic Flight Guidance System, Model SI-346, according to Bulletin No. 446, Revision 3, dated 8-09-91 and Master Drawing List No. 92396, Revision C, dated 8-09-91 and/or later FAA Approved revisions of the above data (28 Volt System).

1. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89/04, dated 10-17-86 is required for Cessna Model 402C and/or later FAA Approved revisions of the above supplement.

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

10-17-86 Dals emended:

EDER. AVIATIO By Direction of the Administrator (Signatare) TOMINISTE DAS Staff Coordinator. DAS 5 Sh William J. Thomas (Tille)

This certificate may be transferred in excordance with FAR 21.17.

**PAN FOR 8110-2 (10-68)**

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number S60935W-0, Revision 2 Limitations and Conditions: (con't.)

2. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89/04-1, dated 2-10-89 is required for Cessna Model 4021 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 89704-2, dated 8-22-91 is required for Cessna Model 402C and/or later FAA Approved revisions of the above supplement.

4. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89813, dated 2-10-89 is required for Cessna Models 401, 401A, and 401B and/or later FAA Approved revisions of the above supplement.

5. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89813-1, dated 8-22-91 is required for Cessna Models 401, 401A, and 401B and/or later FAA Approved revisions of the above supplement.

6. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89939, dated 8-22-91 is required for Cessna Models 402A and 402B and/or later FAA Approved revisions of the above supplement.

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

t7 PAGE 2 OF 2 PAGES

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and streel) (City, Stake, and 2IP 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):- 363-090

## Every issue (1)

- August 22, 1991: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/0a/ee/0aee4a4727ff985bc9c0bbd27b43f83b156fe21eea06f458067126cc86d6c00c)

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