# STC SA8372SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 40/50 single and two axis automatic flight guidance systems, Model ST-510.
- Applied: August 5, 1993
- Status date: August 17, 1993
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A6CE](https://openairdocs.org/tcds/A6CE)
- Certificate PDF: https://openairdocs.org/files/sha256/10/7d/107d0af1983ed66b3e5819e236e18e800779aed6199fe76c4a6cf709c9134379
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4BF26B8B9182708985256CC20058E75E.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA8372SW-D

## ADs that name it (0)

None.

## Approved models (2)

- The Cessna Aircraft Company 337B ([TCDS A6CE](https://openairdocs.org/tcds/A6CE))
- The Cessna Aircraft Company 337C ([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.

Brind Sons of Arria Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number 5A837254-0 This certificate issued to: S-TEC Corporation 946 Pegram Wolters Industrial Park Mineral Wells, Texas 76067 contifes that the shangs in the lype desiger for the following product with the limitations and conditions shomfor se specifed hereon meeds the sinworthiness requiremonts of Port 23 of the Federal Aviation Regulations Original Product -Type Contificato Numbon: AGCE Маке: CESSNA Model: 3378 and 3376 Description of Type Design Change:

Installation of S-TEC System 40/50 Single and Two Axis Automatic Flight Guidance Systems, Model ST-510, according to Bulletin No. 610, dated 8-03-93 and Master Drawing List No. 92588, dated 8-03-93 or later FAA Approved revisions of the above data (28 Volt System).

1. FAA/DAS Approved Supplemental Flight Manual, P/N 891032, dated 8-17-93 is required for System 40 for Cessna Models 3378 and 337C or later FAA Approved revisions of the above supplement.

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

8-17-93 Date Amended:

FEDERAL By Direction of the Administrator M tamane (Signature) Thomas TOMINIST RANDO DAS Staff Coordinator, DAS 5 SW (Tille)

**FAA FORM 01 10-2 (10-68)**

Emitzo States of Amenra Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number SA8372SW-D Limitations and Conditions: (con't.)

2. FAA/DAS Approved Supplemental Flight Manual, P/N 891034, dated 8-1/-93 1s required for System 50 for Cessna Models 33/8 and 337C 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.

**PAGE 20F 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 ZIP code) Extent of Authority (if licensing agreement): - Date of Transfer:

Signature of grantor (In ink): _ U.S. GOVERHMENT PRINTING OFFICE: 1966 OF-205-579

## Every issue (1)

- August 17, 1993: Issued, Current. [certificate](https://openairdocs.org/files/sha256/10/7d/107d0af1983ed66b3e5819e236e18e800779aed6199fe76c4a6cf709c9134379)

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