# STC SA59SW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Mitchell Industries Inc, United States
- Description: Installation of Piper Altimatic Pilot Model AK089 or AK089R
- Applied: April 21, 1966
- Status date: July 8, 1966
- Product: Aircraft, Small Airplane
- Data sheets: [TCDS 1A15](https://openairdocs.org/tcds/1A15), [TCDS A1EA](https://openairdocs.org/tcds/A1EA)
- Certificate PDF: https://openairdocs.org/files/sha256/ee/c1/eec1c3dba38d9f8b6874f311813dd5f826afbf62b39e4b5d1c76158c356d74cd
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8F13DD8001B8985686257F0D006F8CA2.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA59SW

## ADs that name it (0)

None.

## Approved models (5)

- Piper Aircraft Inc. PA-24 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- Piper Aircraft Inc. PA-24-250 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- Piper Aircraft Inc. PA-24-260 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- Piper Aircraft Inc. PA-24-400 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- Piper Aircraft Inc. PA-30 ([TCDS A1EA](https://openairdocs.org/tcds/A1EA))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

**FEDERAL AVIATION AGENCY FORM APPROVED, BUDGET BUREAU NO. 04-R015**

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

Supplemental Type Certificate COPY WILL BE RETURNED TO APPLICANT UPON

**ISSUANCE**

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

Municipal Airport P. O. BOX 610 Mineral Wells, Texas 76067 Supplemental Type Certificate APPLIED FOR:

AIRCRAFT ENGINE PA 24-260 ORIGINAL MODEL DESIGNATION TPA-24-400 Piper PA-24, PA-24-250, PA-30 & NEW MODEL DESIGNATION (If desired) NONE

3. DESCRIPTION OF CHANGE Installation of Piper Altimatic Pilot Model AK089 or AK089R in accordance with Mitchell Industries, Inc. Bulletin No. 176 dated 4-21-66 and subsequent F. A. A.

approved bulletins and/or supplements.

Installation of Mitchell Lateral Guidance Radio Coupler Model AK123 per Mitchell Bulletin No. 206 dated June 10, 1964.

Installation of 3" instruments per Bulletin No. 211 dated Nov. 26, 1963.

1. Mitchell Ind. F. A. A. approved placard 13A98 required with PA-24 PA-24-250 and PA-24-260, placard 13A232 required with PA-24-400, and placard 13A233 required with PA-30.

OVER *a. WILL DATA BE AVAILABLE FOR SALE OR RELEASE TO OTHER PERSONS? YES • NO

b. WILL PARTS BE MANUFACTURED FOR SALE (Ref. CAR 1.55)? NO

5. SIGNATURE AND TITLE OF APPLICANT Vilegendank, Daniel M. Thur man Ach Kicker SIGNATURE 5-17-66 _ Roy. 1-21-66 Date of Application: TITLE

6. To be Completed by FAA

NATURE AND LOCATION OF DATA Data in Item 3 above and TIR A4935H8 on f1le at 84-210.

Applicable regulations: same as original certification ORIGINAL TYPE CERTIFICATE NO. FAA APPROVAL 1A15 Supplemental Type Certificate NO.

1 GNATUR DATE OF APPROVAL SA598W Chief, Ingineering and Nanufacturing Branch Glen W. Welma 6/1/62 Rerision 3 7/8/66 TITLE * U.S. GOVERNMENT PRINTING OFFICE: 1959 0-509657 FORM FAA-2417 (5-59)

## Every issue (1)

- July 8, 1966: Issued, Current. [certificate](https://openairdocs.org/files/sha256/ee/c1/eec1c3dba38d9f8b6874f311813dd5f826afbf62b39e4b5d1c76158c356d74cd)

---
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.