# STC SA3237SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system Model AK636, consisting of a Century IIB autopilot with optional radio coupler.
- Applied: July 13, 1977
- Status date: December 7, 1983
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A17SO](https://openairdocs.org/tcds/A17SO)
- Certificate PDF: https://openairdocs.org/files/sha256/93/28/9328a7c74077e0e638fb16b7a6346dc3fc452c577671d26c863cdfc2db1defd2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5E7A9E44A62E744685256CC2000A95AF.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3237SW-D

## ADs that name it (0)

None.

## Approved models (1)

- SOCATA - Groupe Aerospatiale GA-7 ([TCDS A17SO](https://openairdocs.org/tcds/A17SO))

## 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.

Untad £tatt> of aratrita Bepartment of ^transportation—federal atriation administration Supplemental 'Cuje Certificate *yiu>mvev' SA3237SW-D Century Flight Systems, Inc.

P.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 J^'.tyjfodcA^ yi«<^!!&a!0£«««>^»7M«^ 23 ^Jri* Federal Aviation fktavru*/ <J!<eetuc£ —— d'lu^i&'fa&rttfuM&'iSu&rneev': A17SO Grumnan American Installation of Mltchell Automatic Flight System Model AK636 consisting of a Century IIB Autopilot with Optional Radio Coupler according to Bulletin No.

763, Revision 3, dated 5/1/78 and Master Drawing List No. 87A9&8, Revision C dated 5/1/78 (14 Volt System) and/or later FAA approved revision.

Pilot's Operating Handbook and FAA/DAS Approved Airplane Flight Manual Supplement P/N 68S411-1-S dated 2/8/78 is required, or P/N 68S613-S dated 5/4/78 is required for GA7, S/N 0041 and Up, or later FAA approved revision.

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

'^fn^^e^Mca^^a^u/'^inf JwSiSi-orJi'na'data Mmtcn- tfr dn& (•oAiA 7/13/77 Z/vt,,,**^: 12/23/77; 2/8/78; 5A/78;

12/7/83 Revision 4 10/24/77 ^/ a/t atttf ne/tt/ :

Don P. WatSOn (Signature) Manager, Aircraft Certification Division Southwest Region (Titlt)

FAAFotM8llO-2(IO-68)

INSTRUCTIONS: The tranrfer endorsement below m.y be used .o notify the appropriate FAA Regional Office of (he transfer of thU Supplemenul Type Certificate.

The FAA will reissue the certificate in the name of ihe transferee and forward ii to him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee).

(Address of transferee) _ from (Name of grantor) (Print or type).

(Address of grantor) (Citf, SUU.

Signature of grantor (In ink):

## Every issue (1)

- December 7, 1983: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/93/28/9328a7c74077e0e638fb16b7a6346dc3fc452c577671d26c863cdfc2db1defd2)

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