# STC SA109SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Mitchell Industries Inc, United States
- Description: Installation of Mitchell Automatic pilot AK106.
- Applied: July 16, 1964
- Status date: September 25, 1964
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12), [TCDS 3A17](https://openairdocs.org/tcds/3A17)
- Certificate PDF: https://openairdocs.org/files/sha256/e6/b8/e6b8b4d3b3db3e6e2f782846105f69bc43b8e5d2aed7b446adc977fd480f07c3
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F141097F9500342986257D40007076E5.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA109SW

## ADs that name it (0)

None.

## Approved models (9)

- Cessna Aircraft Company 172 ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172A ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172B ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172C ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172D ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 172E ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Cessna Aircraft Company 175 ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- Cessna Aircraft Company 175A ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- Cessna Aircraft Company 175B ([TCDS 3A17](https://openairdocs.org/tcds/3A17))

## 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.

**FEDERAL AVIATION AGENCY**

**SUPPLEMENTAL TYPE CERTIFICATE FORM APPROVED, BUDGET BUREAU NO, 04-R015**

INSTRUCTIONS - SUBMIT IN TRI PLICATE TO LOCAL F*A FLIGHT STANDARDS INSPECTOR.

**COPY WILL BE RETURNED TO APPLICANT UPON**

**ISSUANCE**

1. NAME AND ADDRESS OF APPLICANT Mitchell Industries, Inc.

Municipal Airport P.O. Box 610 Mineral Welle, T*xa« 76067

2. SUPPLEMENTAL TYPE CERTIFICATE APPLIED FOR:

IX! AIRCRAFT 1 ._! ENGINE LA PROPELLER ORIGINAL MODEL DESIGNATION [ 7 J> £ 1 7 SB fc 17'K Caiina 172*. I72A. 172B. 172C. } 72D. 175.

NE* MODEL DESIGNATION (If None

3. DESCRIPTION OF CHANGE Installation of Mitchell Automatic Pilot Model AK106 in accordance with Mitchell Industries, Inc. Bulletin No. 182 dated July I 6, 1964 and subsequent F. A. A.

approved bulletin! and/ or supplements.

Installation of Mitcbell Lateral Guidance Radio Coupler Model AK123 p«r Bulletin No. £06 4**vd June 10, 1964.

Notes: Mitchell Industries, lac. F.A.A. approved placard 13A89-106 required.

*ILL DATA BE AVAILABLE FOR SALE OR RELEASE TO OTHER PERSONS?

b. WILL PARTS BE MANUFACTURED FOR SALE (fief. CAR 1.55)1 YES YES NO

**5. SIGNATURE AND TITLE OF APPLICANT**

7-16.64

DATE OF APPLICATION Vice President TITLE

6. To be Competed by FAA

NATURE AND LOCATION OF DATA Data lilted ia fen 3 •bove and TW A379S VJ on £il« at SW-210.

AffllHble CAS's MEM as original cartlflcatiatt.

ftefarence Project A1403U.

**ORIGINAL TYPE CERTIFICATE NO.**

3A12 & 3A17

•PLEMENTAL TYPE CERTIFICATE NO.

SAlOMff DATE Of APPROVAL 6-10-02 Revised: 9-25-64

**FAA APPROVAL**

SIGNATURE -11. H. Slaughter Chlafi Engineering «od MRnufacturing Branch Tl TIE FORM FAA-2417 (5-591

## Every issue (1)

- September 25, 1964: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/e6/b8/e6b8b4d3b3db3e6e2f782846105f69bc43b8e5d2aed7b446adc977fd480f07c3)

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