# STC SA7203SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 65 Two axis Automatic Flight Guidance System, Model ST-313.
- Applied: December 20, 1989
- Status date: February 27, 1990
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A6CE](https://openairdocs.org/tcds/A6CE)
- Certificate PDF: https://openairdocs.org/files/sha256/4a/3e/4a3e644966ee9a2dad91ab51d24e253a6ef7add97ae3a289465b834992f5890c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DC3E934075F6889B85256CC20056A204.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA7203SW-D

## ADs that name it (0)

None.

## Approved models (12)

- Textron Aviation Inc. 337D ([TCDS A6CE](https://openairdocs.org/tcds/A6CE))
- Textron Aviation Inc. 337E ([TCDS A6CE](https://openairdocs.org/tcds/A6CE))
- Textron Aviation Inc. 337F ([TCDS A6CE](https://openairdocs.org/tcds/A6CE))
- Textron Aviation Inc. 337G ([TCDS A6CE](https://openairdocs.org/tcds/A6CE))
- Textron Aviation Inc. 337H ([TCDS A6CE](https://openairdocs.org/tcds/A6CE))
- Textron Aviation Inc. P337H ([TCDS A6CE](https://openairdocs.org/tcds/A6CE))
- Textron Aviation Inc. T337D ([TCDS A6CE](https://openairdocs.org/tcds/A6CE))
- Textron Aviation Inc. T337E ([TCDS A6CE](https://openairdocs.org/tcds/A6CE))
- Textron Aviation Inc. T337F ([TCDS A6CE](https://openairdocs.org/tcds/A6CE))
- Textron Aviation Inc. T337G ([TCDS A6CE](https://openairdocs.org/tcds/A6CE))
- Textron Aviation Inc. T337H ([TCDS A6CE](https://openairdocs.org/tcds/A6CE))
- Textron Aviation Inc. T337H-SP ([TCDS A6CE](https://openairdocs.org/tcds/A6CE))

## What the certificate says

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

Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA72035W-D This certificate issued to: S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, Texas 76067 Part 23 of the Federal Aviation Regulations.

Original Product -Type Contificate Number: AGCE Make: Cessna Description of Type Design Change: Model: 337D, T337D, 337Е, T337Е, 337F, T337F, 337G, T3376 337H, P337H, T337H, T337H-SP Installation of S-TEC System 65 Two Axis Automatic Flight Guidance System, Model ST-313, according to Bulletin No. 413, Revision 1, dated 2-06-90 and Master Drawing List No. 92497, Revision A, dated 2-06-90 and/or later FAA Approved revisions of the above data (28 Volt System).

1. Also eligible on the above models when modified per STC SA937CE (Horton STOL Craft Conversion).

2. Also eligible on the above models when modified per STC SA1627WE (Robertson STOL Conversion).

This or lifetiana the suspenting data which is the las is for a proved shall remain in effect unle sur vendered, suspended, versked, or a terminalion date is dhorwise established by the Administraton of the Federal Aviation Administration Date of Application: 12-20-89 Date Reissued: 2-27-90, Revision 1 Date of Issuance: 1-05-90 Date Amended:

FEDERAL AVIATION By Direction of the Administrator Troll A. Item (Signature) OMINIST CATION DAS Staff Coordinator, DAS 5 SW Harold W. Holdeman (Title)

47.

**FAX 1004 0110-2 (10-88)**

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA720354-D, Revision 1 Limitations and Conditions: (con't.)

FAA/DAS Approved Supplemental Flight Manual, P/N 89835, dated 1-05-90 is required for Cessna Models T337G and P337G When Modified Per STC SA1627WE (Robertson STOL Conversion) and/or later FAA Approved revisions of the above supplement.

4. FAA/DAS Approved Supplemental Flight Manual, P/N 89835-1, dated 2-27-90 is required for Cessna Models 33/D, 1337D, 337E, 1337E, 337F, 133/F, T337G, 337H, P337H, T337H and T337H-SP When Modified Per STC SA1627WE (Robertson STOL Conversion) and/or later FAA Approved revisions of the above supplement.

FAA/DAS Approved Supplemental Flight Manual, P/N 89842, dated 2-27-90 is required for Cessna Models 337D, T337D, 337E, T337E, 337F, T337F, 337G, T337G, 337H, P337H, T337H and T337H-SP And The Above Models When Modified Per STC SA937CE (Horton STOL Craft Conversion) and/or later FAA Approved revisions of the above supplement.

6. Compatability of this modification with other previously approved modifications must be determined by the installer.

**47 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 ZIP code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and Z1P code) Exent of Authority (if licensing agreement) :

Signature of grantor (In ink) :

## Every issue (1)

- February 27, 1990: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/4a/3e/4a3e644966ee9a2dad91ab51d24e253a6ef7add97ae3a289465b834992f5890c)

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