# STC SA3191SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic flight system model AK649 consisting of Century I autopilot with optional omni tracking system.
- Applied: February 17, 1977
- Status date: June 19, 1984
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 5A3](https://openairdocs.org/tcds/5A3)
- Certificate PDF: https://openairdocs.org/files/sha256/ed/70/ed70b7ed36960457ccadfb6447a35ae7c88a4e1e0e42ca373c184cff1acf8b24
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B4018DF4AD175EEA85256CC2000A9505.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3191SW-D

## ADs that name it (0)

None.

## Approved models (1)

- Beechcraft Corporation A45 (Military T-34A; B-45) ([TCDS 5A3](https://openairdocs.org/tcds/5A3))

## 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.

Btpartmcnt of transportation-federal atriation administration Supplemental 'Cgpe Certificate SA3191SW-D Century Flight Systems, Inc.

F.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 v^&^J6u^1elieA^Mfc^jA&^e>6£c>u>ivwfwwcUt*4s^^ Civil Air 5 A3 Beech A45 (T-34A, B-45) Installation of Mitchell Automatic Flight System Model AK649 consisting of Century I Autopilot with Optional Omni Tracking System according to Bulletin No, 776, dated 2-15-77 and Master Drawing List No, 87A911, dated 2-15-77.

,•• Also eligible on the above model when modified in accordance with STC SA1450SW or SA1864SW (285 H.P. Engine Conversions) FAA/DAS Approved Airplane Flight Manual Supplement, P/N 68S519, dated 2-25-77 is required.

J^bf di^Ld^b-y" S^SXgSrY1"1 °ther Previously aPP-ved modifications «.ynia>*Gev6fica4e'Ja<ruz-Jfy* Aufift&r6/n>a/*u*£aM'/uc/i' tA-.tnaJfiJHA f('T-sC^iS>wt>atjl*AJa///rt-rrun'n/ <<w-«^<"/J«^iy5'X<i«^~

•A tJ/t*vwH^ ^/^*<A/i&/J>u<J/u .Vzctrtn'nc46i>a/<-r- <44n* — JJ"S*- 'ifiA 2-17-77 £/«6rr*Aw*/: 6-19-84, Revision 1 ~s a£r H ttu1 ftf/fff -' ,/t,U'Jat'>w/t<'ri tj &f* S.'/ Don P. Watson Manager, Aircraft Certification Division Southwest Region (Title) alteration of this certificate « punishable by a fine of not exceeding 11,000, or imprisonment not exceeding 3 years, or both.

This certificate may bt transferred in accordance with FAR 21.17.

FAA font 6110-3 (10-68)

ow may be used ,o n<xify .he appropriate FAA Region.. Office of the transfer of ihii 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). (MumbamJstrttt) from (Name of grantor) (Print or type).

(Address of grantor) __ t at). Situ, Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- June 19, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/ed/70/ed70b7ed36960457ccadfb6447a35ae7c88a4e1e0e42ca373c184cff1acf8b24)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.