# STC SA3217SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system model AK673 consisting of Century III autopilot with optional radio coupler and glide slope coupler.
- Applied: May 18, 1977
- Status date: December 7, 1983
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A15](https://openairdocs.org/tcds/3A15)
- Certificate PDF: https://openairdocs.org/files/sha256/03/58/0358979b88682b2ad74d7d5848505546beec1531fae2931b5fffc33e6e52bf23
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BC9224FF6051F4FD85256CC2000A9565.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3217SW-D

## ADs that name it (0)

None.

## Approved models (1)

- Beechcraft Corporation V35B ([TCDS 3A15](https://openairdocs.org/tcds/3A15))

## 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.

ttntod grata of amtrica Bepartmcnt of ^transportation -federal ablation administration Supplemental t^pe Certificate iSKttmvev SA3217SW-D Century Flight Systems, Inc.

P.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 -^^.<^^-<a(«1*^ 3 Civil Air 3A15 Beech V35B Installation of Mitchell Automatic Flight System Model AK673 consisting of a Century III Autopilot with Optional Radio Coupler and Glide Slope Coupler according to Bulletin No. 802, Revision 2, dated 10-5-78 and Master Drawing List No. 87A930, Revision B, dated 10-5-78 (08 Volt System and/or later FAA approved revisions.

: Also eligible on Beech Model V35B When Modified in Accordance with SIC SA1035WE (Turbocharged Engine) Pilot's Operating Handbook and/FAA DAS Approved Airplane Flight Manual Supplement, P/N 683556, dated 7-7-77 is required and/or later FAA Approved revisions.

Placard, P/N 13A660-1 is required.

Compatibility of this modification with other previously approved modifications determined bv the installer*. ,/,.*.. / / //M#i&JfaA*iuWiM'jcfa^Mm4^^ .. #>,,/ -i4' - <6 4nt' ' *& €& 5-18-77 4-10-78; 11-8-78; 12-7-83 Revision 3 — ^ **& *i/tt Don P. Watson Manager, Aircraft Certification Division Southwest Region (Title)

**FAA FOIM 8110-2 (10-68)**

1 Office of the transfer of thu Supplemental Type Certificate.

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

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

(Address of transferee) _ (Cit), SMe, «*/ 3 from (Name of grantor) (Print or type).

(Address of grantor) (Mumbtr **J attttj Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- December 7, 1983: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/03/58/0358979b88682b2ad74d7d5848505546beec1531fae2931b5fffc33e6e52bf23)

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