# STC SA5217SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 60 two axis automatic flight guidance system, Model ST-226, with optional automatic electric trim system
- Applied: September 6, 1983
- Status date: May 8, 1986
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A21](https://openairdocs.org/tcds/3A21)
- Certificate PDF: https://openairdocs.org/files/sha256/5d/9e/5d9ed5005b311b3350b6ea054fb4d04c3d30787cdbc6e410c55ff3aafa61c30a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DDC5C1CCBB4BCD2486257ECB00618932.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5217SW-D

## ADs that name it (0)

None.

## Approved models (6)

- Cessna Aircraft Company 210G ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company 210H ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company 210J ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company T210G ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company T210H ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- Cessna Aircraft Company T210J ([TCDS 3A21](https://openairdocs.org/tcds/3A21))

## What the certificate says

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

nitri Scarce of Arerica Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA521754-0 This certificate issued to: 11. S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, TX 76067 Part 3 of the CiVIl Air Hegulations.

Original Product - Type Gertificate Numben: ЗА21 Make: CESSNA Model: 210G, T210G, 210H, T210H, 210J AND T210J Description of Type Design Change:

Installation of S-TEC System 60 Two Axis Automatic Flight Guidance System, Model ST-226, with Optional Automatic Electric Trim System according to Bulletin No. .320, Revision 3, dated 5-02-86 and Master Drawing List No.

92238, Revision C, dated 5-02-86 with Optional Flight Director/Steering Horizon and/or later FAA Approved revisions of the above data (14 Volt System).

1. Also eligible on Cessna Models T210G, T210H and T210J when modified in accordance with STC SA2689SW (RAM Modification).

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

Date of Application: 9-06-83 Date Reissued: 11-21-84, 8-05-85, 5-08-86, Revision Date of Issuance: 10-07-83 Date Amended:

FEDERAL AVIATION By Direction of the Administrator (Signalure) OMINISTE DAS Staff Coordinator, DAS 5 SW Harold W. Holdeman (Title)

This certificate may be transferred in accordance with FAR 21,47.

ТАА FORM 8110-2 (10-60)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA5217SW-D, Revision 3 Limitations and Conditions: (con't) FAA Approved Supplemental Flight Manual, P/N 89327, dated 10-07-83 is required for Cessna Models 210G, T210G, 210H, T210H, 210J and T210J and/or later FAA Approved revisions of the above supplement.

3. FAA Approved Supplemental Flight Manual, P/N 89327-1, dated 8-05-85 is required for Cessna Models 210G, T210G, 210H, T210H, 210J, T210J and Models T210G, T210H and T210J when modified in accordance with STC SA2689SW (RAM Modification) and/or later FAA Approved revisions of the above supplement.

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

**47 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. GOVERNMENT PRINTING OFFICE : 1966 OF -205-579

## Every issue (1)

- May 8, 1986: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/5d/9e/5d9ed5005b311b3350b6ea054fb4d04c3d30787cdbc6e410c55ff3aafa61c30a)

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