# STC SA3259SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell Automatic Flight System Model AK691 consisting of Century I autopilot with optional omni tracker.
- Applied: January 3, 1978
- Status date: March 28, 1984
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A29CE](https://openairdocs.org/tcds/A29CE)
- Certificate PDF: https://openairdocs.org/files/sha256/a1/58/a158ddad1c9553f32d530bd87d428739649499f8f3e8718fba899285eaf6dcb7
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/473EBD9017D757A886257DA8006D4778.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3259SW-D

## ADs that name it (0)

None.

## Approved models (1)

- Beechcraft Corporation 76 ([TCDS A29CE](https://openairdocs.org/tcds/A29CE))

## 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.

Bcpartmcnt of transportation — f edcral 2toiation administration Supplemental t^pe Certificate tSUvrnvev SA3259SW-D Century Flight Systems, Inc.

F.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 .£^Ja*iw(i?wj^ 93 '^^''Federal Aviation iSlea*&(a/<j>nA>.

<s/tjJi&&se&&Jtcade'*-/\M#nv&p-: A29CE Beech &ri'&e' :

Installation of Mitchell Automatic Flight System Model AK691 consisting of Century I Autopilot with Optional Omni Tracker according to Bulletin No. 820 Rev. 1 dated 2-2-78 and Master Drawing List No. 87A966, Rev. A dated 2-2-78 (14 Volt System)* or later FAA approved revision.

Pilot's Operating Handbook and FAJL/DAS Approved Airplane Flight Manual Supplement P/N 68S627-1 dated 2-10-78 is required iSs?abpe^UL?^ ?g^stai?£rYith °ther Prevlously aPP——ed modifications ^A^JceiJ^<^a&^nd.4fa,Afy^j^vnyjfa^^v&^>4A, ^At'^^^^^-^i^i^^^tfa^^Aa/f/^^nMt'/n/^n'^l^/M^^/i^jlUi^'- V'w^n^-^xaftun^i^tvi/f-t .,,/: 3-10-78; 3-28-84 Revision 2 Don P. WatSOn (Signature) Manager, Aircraft Certification Division Southwest Region (Title) alteration of this certificate is punishable by a fine of not exceeding 11,000, or imprisonment not exceeding 3 years, or both.

FAAFotM 8110-2(10-68)

INSTRUCTIONS: The transfer endowment be.ow may be used to notify the appropriate FAA Regional Office of the transfer of thU Supplemental Type Certificate.

The FAA will reissue the certificate in the name of ihe transferee and forward il 10 him.

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

(Address of transferee).

( GO••. Stalt.

from (Name of grantor) (Print or type).

(Address of grantor) __ Extent of Authority (if licensing agreement):

(Citf, Stflt, f*4 ZIP toJt I Date of Transfer:.

Signature of grantor (In ink):

## Every issue (1)

- March 28, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/a1/58/a158ddad1c9553f32d530bd87d428739649499f8f3e8718fba899285eaf6dcb7)

---
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.