# STC SA457SW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Mitchell Industries Inc, United States
- Description: Installation of Mitchell Industries Inc Automatic Pitch Trim Model AK145
- Applied: December 10, 1964
- Status date: October 11, 1964
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 3A10](https://openairdocs.org/tcds/3A10)
- Certificate PDF: https://openairdocs.org/files/sha256/bd/cf/bdcf758241dcde76d68ddd5753a16713805719a4017ff3f5796e107397724d28
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2BA35F9A2F7B0E0986257E0D0057C5F0.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA457SW

## ADs that name it (0)

None.

## Approved models (4)

- Cessna Aircraft Company 310C ([TCDS 3A10](https://openairdocs.org/tcds/3A10))
- Cessna Aircraft Company 310D ([TCDS 3A10](https://openairdocs.org/tcds/3A10))
- Cessna Aircraft Company 310E ([TCDS 3A10](https://openairdocs.org/tcds/3A10))
- Cessna Aircraft Company 310F ([TCDS 3A10](https://openairdocs.org/tcds/3A10))

## 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**

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

Municipal Airport P.O. Box 610 Mineral Wells, Texas 76067 FORM APPROVED, BUDGET BUREAU NO. 04-R015

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

**COPY WILL BE RETURNED TO APPLICANT UPON**

**ISSUANCE**

2. SUPPLEMENTAL TYPE CERTIFICATE APPLIED FOR:

**I XI AIRCRAFT 1 1 ENGINE L 1 PROPELLER**

ORIGINAL MODEL DESIGNATION Cessna 310C. 31 OD. 310E & 310F NEW MODEL DESIGNATION (If demired) None

3. DESCRIPTION OF CHANGE Installation of VHtchell Industries, Inc. -Automatic Pitch Trim Model /,Ki45 per Mitchell Industries, Inc. Bulletin No. 256 datec 12- 10-64 and subsequent F. A. A.

approved bulletins and/ or suppler;, ents.

... WILL DATA BE AVAILABLE FOR SALE OR RELEASE TO

b. WILL PARTS BE MANUFACTURED FOR SALE (Kef. CAR

5. SIGNATURE AND TITLE OF APPLICANT 12-10-64 *

DATE OF APPLICATION / OTHER PERSONS? lX~l YES \ 1 NO

1.55)1 LX~I YES [ 1 NO „ ^^^ ^L^^r^^//.}^L/ SIGNATURE f ^/PRESIDENT. Danial M. Thurman f TITLE

6. To be Completed by FM

NATURE AND LOCATION OF DATA Data in Item 3 above, TIH f£k6BHS, Fom 125? dated 12/11/64 on file at SW-210.

Reference Project: A6fc68WS Applicable Regulations: Sane a* original certification.

ORIGINAL TYPE CERTIFICATE NO. FAAAP 3A10 SUPPLEMENTAL TYPE CERTIFICATE NO. ^

•^ SAfcSTSW—————————————————————————————————————————————— Q

DATE OF APPROVAL c 1C/11/6U °ROVA>ir ^ M^ ttQi^SI GNATURE len W. Welsh hief , Engineering and Manufacturing Branch Tl TLE '"""' '**'' W~*' * U.S. GOVERNMENT PRINTING OFFICE : I959O-509657 FORM FAA-2417 (5-59)

## Every issue (1)

- October 11, 1964: Issued, Current. [certificate](https://openairdocs.org/files/sha256/bd/cf/bdcf758241dcde76d68ddd5753a16713805719a4017ff3f5796e107397724d28)

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