# STC SA3113SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell Automatic Flight System Model AK415
- Applied: February 19, 1976
- Status date: August 16, 1984
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-777](https://openairdocs.org/tcds/A-777)
- Certificate PDF: https://openairdocs.org/files/sha256/e2/da/e2da74bd375fd493bd3212f4f6168151675f9206b17a59ee07a7af93240540ca
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/250B654A6EB7F02485256CC2000A93FB.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3113SW-D

## ADs that name it (0)

None.

## Approved models (7)

- Beechcraft Corporation A35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Beechcraft Corporation B35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Beechcraft Corporation C35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Beechcraft Corporation D35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Beechcraft Corporation E35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Beechcraft Corporation F35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))
- Beechcraft Corporation G35 ([TCDS A-777](https://openairdocs.org/tcds/A-777))

## 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.

of arnica Bepartment of'transportation—federal 2toiation administration Supplemental t:uje Certificatei i/Uvmdnv SA3113SW-D F.M. 1195 P.O. Box 610 Mineral Wells, TX 76067 'f^-4fofii>6tott*twf>**>ciu^Mri&jA&;&ni4£a/<*>T^ 3 jAe, Civil Air iSlcaMla£(*nA.

Beech A35, B35, C35, D35, E35, F35, G35 Installation of Mitchell Automatic Flight System Model AK415 consisting of Century IIB Autopilot with Optional Radio Coupler according to Bulletin No. 538, Revision 11, dated 2-18^76 and Master Drawing List No, 87A647, Revision A, dated 2-18^76 The following FAA/DA5 Approved Airplane Flight Manual Supplements are required;

P/N 68S272, dated 3~25<-76 for Beech Models A35, B35, C35, D35 P/N 68S271, dated 3-26-76 for Beech Models E35, F35, G35 Compatibility of this modification with, other previously approved modifications must be determined by the installer.

Ji»*^^ 3Me/mi9iit&a£>*-sfiA* 2-19-76 iffi«t^u-«/.- 8-16-84, Revision 1 3L^y^——— 3-26-76 3L& f-Don P. WatsonManager, Aircraft Certification DivisionSouthwest Region (TitU)

This ctrttjuatt may bt tranifemd in accordant* with FAR 21.47.

FAX Pow> tl 10-2 (1O-6t)

be uted to notify the appropriate FAA Kegional Office of The FAA will remue the certificate in the name of the transferee and forward it to him.

TRANSFER ENDORSEMENT Transfer Ac 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)

- August 16, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/e2/da/e2da74bd375fd493bd3212f4f6168151675f9206b17a59ee07a7af93240540ca)

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