# STC SA4709NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Ritter Cams Inc, United States
- Description: Installation of engine as modified by STC SE4020NM.
- Applied: September 6, 1988
- Status date: April 3, 1989
- Product: Aircraft, Single-Engine
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS A4CE](https://openairdocs.org/tcds/A4CE)
- Certificate PDF: https://openairdocs.org/files/sha256/07/bd/07bdcefd86cf1308edaed0ffb09db74b5589f20f7e1d10e8c736a01b66e1dc28
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E3A81E9B6CC01D2185256CC2000E3E17.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA4709NM

## ADs that name it (0)

None.

## Approved models (2)

- Cessna Aircraft Company U206E ([TCDS A4CE](https://openairdocs.org/tcds/A4CE))
- Cessna Aircraft Company U206F ([TCDS A4CE](https://openairdocs.org/tcds/A4CE))

## 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.

Number SA4709NM

This certificate, issued to Ritter Cams, Inc.

Vale, OR

Part 3 of the Civil Air Regulations.

Original ProductType Certificate Number: A4CE Make: Cessna Model: U206E and U206F

Description of the Type Design Change: Installation of an engine as modified by Supplemental Type Certificate (STC) SE4020NM on the airplane models listed above.

Limitations and Conditions: Approval of this change in type design applies specifically to the airplane models listed in this certificate. This approval should not be extended to aircraft of these models on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any of those other previously approved modifications, including changes in type design will introduce no adverse effect upon the airworthiness of that airplane. A copy of this certificate shall be maintained as part of the permanent records for this modified aircraft.

Applicability of the Design Change:

The following Cessna aircraft models are eligible to install Teledyne Continental Model IO-520-F engine modified per STC SE4020NM:

Models Type Certificate No.

U206E and U206F A4CE

Date of application: September 6, 1988 Date reissued:

Date of issuance: April 3, 1989 Date amended:

(Signature)

Acting Manager, Seattle Aircraft Certification Office (Title)

## Every issue (1)

- April 3, 1989: Issued, Current. [certificate](https://openairdocs.org/files/sha256/07/bd/07bdcefd86cf1308edaed0ffb09db74b5589f20f7e1d10e8c736a01b66e1dc28)

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