# STC SA340SO

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Mike Jones Avionics & Maintenance
- Description: Replacing Continental IO 470 M Engines with Continental IO 520 E engines rated at 300hp for takeoff 285hp continuous, and the installation of Hartzell 3 bladed propellers. EHC A3VF-2B/7636D.
- Status date: December 28, 2010
- Data sheets: 6A1
- Certificate PDF: https://openairdocs.org/files/sha256/3d/de/3dde232329ddc92191893332db32bb4bd7d72d37d4b896dcfb3edcfa74c0437a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID104000947420260213171707.0001
- Page: https://openairdocs.org/stc/SA340SO

## ADs that name it

None.

## Approved models (1)

- Twin Commander Aircraft Corporation 500 Series (TCDS 6A1)

## 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.

SA340SO Mike Jones Avionics & Maintenance 1926 Memorial Blvd.

Murfreesboro, TN 37129 Part 3 Civil Air Regulations 6A1 Aero Commander 500A Approval of this change in type design applies basically to the standard Aero Commander model 500A aircraft only. This approval should not be extended to other aircraft of the same model on which other approved modifications have been made unless it has first been determined that the interrelationships between these various modifications will have (continued on page 3).

12/08/1965 12/28/2010 04/18/1966 05/03/1966 Michael P. Linegang Manager, East Certification Branch 3 Replacing Continental IO 470 M Engines with Continental IO 520 E engines rated at 300hp for takeoff 285hp continuous, and the installation of Hartzell 3 bladed propellers. EHC A3VF-2B/7636D.

Items required; (1) AFM Supplement "Aero Commander 500A, Super 300 (continued on page 3).

SA340SO 3

SA340SO Description of Type Design Change (cont.)

(modified), Colemill Enterprises, Inc., dated April 18, 1966, (2) hydraulic pumps Aero Commander P/N 4790222 (Eastern Industries), and (3) vacuum pumps, Aro Equipment Corp.

P/N 2127 (Aero Commander P/N 4850176)

Limitations and Conditions (cont.)

no adverse effect on the airworthiness of the aircraft.

Certification Basis: CAR 3 dated May 15, 1956, and Amendments 3-3 and 3-4.

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## Every issue (2)

- December 28, 2010: Issued, Current. [certificate](https://openairdocs.org/files/sha256/3d/de/3dde232329ddc92191893332db32bb4bd7d72d37d4b896dcfb3edcfa74c0437a)
- April 18, 1996: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/16/c9/16c9f52810209ac03ddb79c78d9e34ca51b0266250dea84a2013b9affcc67402)

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From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.