# STC SA3115SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell Automatic Flight System Model AK585, Century IV Autopilot
or AK585FD, Century IV Flight Director Autopilot
- Applied: February 26, 1976
- Status date: June 5, 1984
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 3A20](https://openairdocs.org/tcds/3A20)
- Certificate PDF: https://openairdocs.org/files/sha256/75/46/75467533e6fb147973dbe39ddb7eb3dfcf3cb631beb6b354db4953be407992cf
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DEE37F803FFB0DC885256CC2000A9401.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3115SW-D

## ADs that name it (0)

None.

## Approved models (8)

- Beechcraft Corporation 65 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Beechcraft Corporation 65-80 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Beechcraft Corporation 65-A80 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Beechcraft Corporation 65-A80-8800 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Beechcraft Corporation 65-B80 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Beechcraft Corporation 70 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Beechcraft Corporation A65 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Beechcraft Corporation A65-8200 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))

## 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.

Bepartment of Ttransportation -federal Sltriation administration Supplemental ICgpe Certificate SA3115SW-D Century Flight Systems, Inc.

P.M. 1195 P. 0. Box 610 .

Mineral Wells, TX 76067 Jfas/-ufi^deA^n^^jA^J:iM^ /^^ 3 J, Civil Air 3A20 Beech 65, A65, 65-80, 65-A80, 65-B80, 65-A80-8800, A65-8200, 70 Installation of Mitchell Automatic Flight System Model AK585, Century IV Autopilot or AK585FD, Century IV Flight Director Autopilot with Optional Remote Annunciator according to Bulletin No. 709, Revision 3, dated 11-29-77 and Master Drawing List No. 87A845, Revision C, dated 11-29-77 (28 Volt System) or later FAA Approved Revisions of the above data.

: Also eligible on any of the above models when modified in accordance with STC SA444SW (Excalibur Conversion) FAA/DAS Approved Airplane Flight Manual Supplement, P/N 68S354-2-S, dated 12-2-77 is required or later FAA Approved Revisions of the above supplement.

Placard, P/N 13A660 is required.

/>„/, ,J .* <™: 2-26-76 3—18—76 -u' 8-10-76, 12-2-77, 6-5-84, Revision 3 Don P. Watson (S>s™«»<) --^ Manager, Aircraft Certification Division Southwest Region (Title)

This certificate may be transferred in accordance with FAR 21 .17.

FAA F<MM S 1 1 0-2 ( 1 0-6S)

I WTRUCnONS: The .ran*, endorsement bc.ow may be u^d ,o notify the appropriate FAA Region.. Office of c he transfer of thii Supplemental Type Certificate.

The FAA will reiuue the certificate in the name of the transferee and fonvard it 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) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- June 5, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/75/46/75467533e6fb147973dbe39ddb7eb3dfcf3cb631beb6b354db4953be407992cf)

---
From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.