# STC SA5335SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 60 two axis flight guidance system, Model ST-241, with optional automatic electric trim system.
- Applied: August 29, 1984
- Status date: March 10, 1989
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A26EU](https://openairdocs.org/tcds/A26EU)
- Certificate PDF: https://openairdocs.org/files/sha256/9c/87/9c87744baa46dc30c03b6d01232b4c54ed3684e79c97a19d44c4fffbceb9c306
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C7C48E94B6D43ACA85256CC200122874.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5335SW-D

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company F177RG ([TCDS A26EU](https://openairdocs.org/tcds/A26EU))

## 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.

United £tatts of America Bepartmtnt of 'Cransportation — federal Nation administration Supplemental "Cgpe Certificate *yK(*m<vew SA5335SW-D S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, Texas 76067 Z'.<^^^ .<^*^L^£!^s<>^7?^^ 23 Federal Air A26EU Reims-Cessna F177RG Installation of S-TEC System 60 Two Axis Automatic Flight Guidance System, Model ST-241, with Optional Automatic Electric Trim System, according to Bulletin No. 341, Revision 1, dated 2-15-89 and Master Drawing List No. 92286, Revision A, dated 2-15-89 and/or later FAA Approved revisions of the above data (14 Volt System).

1. FAA Approved Supplemental Flight Manual, P/N 89514, dated 9-04-84 is required for Reims-Cessna Model F177RG and/or later FAA Approved revisions of the above supple ment.

2. FAA Approved Supplemental Flight Manual, P/N 89514-1, dated 3-10-89 is required for Reims-Cessna Model F177RG and/or later FAA Approved revisions of the above supplement.

3. Compatabil ity of this modification with other previously approved modifications ^e<i^^ S&cJrrivritd 3-10-89, Revision 1 (Signature) Harold W. Holdeman DAS Staff Coordinator, DAS 5 SW (Title)

FAA FotM 8110-2 (10-68)

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee)_ (Address of transferee). (Number and street) (City, State, and <?/> code) from (Name of grantor) (Print or type).

(Address of grantor) (Number and street) (City, State, and %IP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- March 10, 1989: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/9c/87/9c87744baa46dc30c03b6d01232b4c54ed3684e79c97a19d44c4fffbceb9c306)

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