# STC SA3034SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system Model AK503 consisting of a Century IV autopilot or AK503FD consisting of a Century IV flight director autopilot with optional remote annunciator.
- Applied: December 9, 1974
- Status date: June 21, 1984
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A15](https://openairdocs.org/tcds/3A15)
- Certificate PDF: https://openairdocs.org/files/sha256/88/a9/88a9dab7af0b12c26169368f2cc744414add59122b09af98e59c470092ae6fa5
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7BC355CD98F4265D85256CC2000A92F8.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3034SW-D

## ADs that name it (0)

None.

## Approved models (4)

- Beechcraft Corporation S35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Beechcraft Corporation V35 ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- Beechcraft Corporation V35A ([TCDS 3A15](https://openairdocs.org/tcds/3A15))
- 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.

Bepartmem of ICransportattori — federal aoiation administration Supplemental t^pe Certificate tStuvrwer'SA3034SW-D Century Flight Systems, Inc.

P.M. 1195 P. 0. Box 610 Mineral Wells, XX 76067 Civil Air ^Ttf-atda/tfnA.

&>*iujt 3A15 Beech S35, V35, V35A, V35B ViAj&n&e' :

Installation of Mitchell Automatic Flight System Model AK503 consisting of a Century IV Autopilot or AK503FD consisting of a Century IV Flight Director Autopilot with Optional Remote Annunciator according to Bulletin No. 626, Revision 8, dated 10-5-78 and Master Drawing List No. 87A757, Revision H, dated 10-5-78 (14 Volt System) and/or later FAA Approved Revisions of the above data.

Also eligible on Beech Models S35, V35, V35A and V35B When Modified In Accordance With STC SA1035WE (Turbocharged Engine) FAA/DAS Approved Airplane Flight Manual Supplement, P/N 68S211-3, dated 6-10-77 is required for Beech Models S35, V35, V35A, and V35B, S/N D-9947 and Before and the above models when modified in accordance with STC SA1035WE (Turbocharged Engine) See Continuation Sheet, Page 2, a' part of this STC, ™*>™*1 -PP^ed modifications jf*- a, 12—9 — 74 12—13—74 12-1-75; 7-30-76; 8-17-76; 6-10-77;

4-27-78; 11-8-78; 6-21-84 Revision 7 Don P. Watson Manager, Aircraft Certification Division Southwest Region (7 nil)

This certificate may bt tramfnrid in aitorJamr with f'AK 21.17.

FAA FMM • 110-2 (10-41)

firttti goto if Btpartmtnt of transportation—Jftdcral Sfoiation administration Supplemental lEjipe Certificate(Continuation $httt) SA3034SW-D, Revision 7f dated 6-21-84 Limitations and Conditions (continued);

FAA/DAS Approved Pilot's Operating Handbook Supplement, P/N 68S549, dated 6-10-77 for Beech Model V35B, S/N D-9948 and After and the above model when modified in accordance with STC SA1035WE (Turbocharged Engine) is required and/or later FAA Approved Revisions of the above Supplements.

Placard, P/H 13A660 is required for owners with an Airplane Flighc Manual.

Placard, P/N 13A660-1 is required for owners with a Pilot's Operating Handbook Supplement,

FAA. FORM •Mo-2-1 (io-w) Tku ftitificaU may bi transfiriid in aceardanct with FAR 21.47.

INSTRUCTIONS: Th^ transfer endorsement below may be used to notify the appropriate FAA Regional office of the transfer of the Supplemental Type Certificate.

The PAA will reissue the certificate in the nama of tha transferee and forward it to him.

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 S street) (City, State, and ZIP code) Extent of Authority (if licensing agreement):

Signature of grantor (Jn ink):

## Every issue (1)

- June 21, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/88/a9/88a9dab7af0b12c26169368f2cc744414add59122b09af98e59c470092ae6fa5)

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