# STC SA709SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell automatic aileron stabilizer Model AK229.
- Applied: October 14, 1966
- Status date: May 26, 1984
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A13](https://openairdocs.org/tcds/3A13)
- Certificate PDF: https://openairdocs.org/files/sha256/36/9d/369dae3983364d4aa4b12b02d04f093df97f1c28ee11b7e9b7170493b66dd0de
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/348702484058E8BC85256CC20056A164.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA709SW

## ADs that name it (1)

- [AD 70-15-18](https://openairdocs.org/ad/70-15-18): Automatic Pilot and Automatic Aileron Stabilizer Instruments · Mitchell Industries Auto Pilot Systems Instruments. Effective Aug 31, 1970. Cited in the text

## Approved models (5)

- The Cessna Aircraft Company 182 ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- The Cessna Aircraft Company 182A ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- The Cessna Aircraft Company 182B ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- The Cessna Aircraft Company 182C ([TCDS 3A13](https://openairdocs.org/tcds/3A13))
- The Cessna Aircraft Company 182D ([TCDS 3A13](https://openairdocs.org/tcds/3A13))

## 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.

<-Sle&4&la&&na..

department of transportation—federal atriation administration Supplemental t^uje Certificate i/Ketm&e?1' SA709SW Century Flight Systems, Inc.

P.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 ^rt f^J&&f& 3 3A13 Cessna : 182, 182A, 182B, 182C, 182D Civil Air na* :

Installation of, Mitchell Automatic Aileron Stabilizer Model AK229 according to Mitchell Industries, Inc. Bulletin No. 337 revised November 2, 1970.

Mitchell Industries, Inc. FAA Approved Placard 13A343-229-1 required.

October 14, 1966 October 31, 1966 1-6-67; 3-23-7Q; 11-30-70;

5-26-84, Revision 4 -/ atr a tttf ttf/ff/ •' Don P. Watson Manager, Aircraft Certificatioiv Division Southwest Region (Title) fine of not exceeding II ,000, or imprisonment not exceeding 3 years, or both.

This certificate may be transferred in accordance with FAR 21,47.

FAA Fown 8110-J (10-48)

## Every issue (1)

- May 26, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/36/9d/369dae3983364d4aa4b12b02d04f093df97f1c28ee11b7e9b7170493b66dd0de)

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