# STC SE04117CH

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Western Skyways, United States
- Description: Conversion of Continental Motors engine models TSIO-520-C, -G, -H, -M & -R to the naturally aspirated IO-520-A, -F, -J & -L
- Applied: January 27, 2016
- Status date: September 30, 2016
- Product: Engine
- Certification basis: Part 13, Part 21
- Data sheets: [TCDS E8CE](https://openairdocs.org/tcds/E8CE)
- Certificate PDF: https://openairdocs.org/files/sha256/f5/4e/f54ec9a1fb9ce4ffc3a99a442e86cb5bd9af2f00127441aa15e8c62447006434
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DE5CFC920693BBEF8625805200553972.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SE04117CH

## ADs that name it (0)

None.

## Approved models (5)

- Continental Motors Inc TSIO-520-C ([TCDS E8CE](https://openairdocs.org/tcds/E8CE))
- Continental Motors Inc TSIO-520-G ([TCDS E8CE](https://openairdocs.org/tcds/E8CE))
- Continental Motors Inc TSIO-520-H ([TCDS E8CE](https://openairdocs.org/tcds/E8CE))
- Continental Motors Inc TSIO-520-M ([TCDS E8CE](https://openairdocs.org/tcds/E8CE))
- Continental Motors Inc TSIO-520-R ([TCDS E8CE](https://openairdocs.org/tcds/E8CE))

## 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.

Part 13 of the Civil Aviation R egulations.

Original Product --Type Certificate N umber :

Conversion of Continental Motors engine models TSIO-520-C, -G, -H, -M & -R to the naturally aspirated IO-520-A, -F, -J & -L in accordance with Western Skyways Assembly Instructions WS2016-03 Rev. IR dated 01/27/2016 or later FAA approved revision.

1. Compatibility of this design change with previously approved modifications must be determined by the installer.

2. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other per son written evidence of that permission.

3. The approved Continental Motors Engine Models shall be maintained in accordance with Western Skyways M2016—3 Assembly Instructions & Instructions for Continued Airworthiness, dated 01/27/2016 or later FAA approved revision and WS2016-04 Master Parts List, Rev. IR dated 6/1/2016.

4. A copy of this certificate must be maintained as part of the permanent records for the modified aircraft.

Western Skyways 21 Creative Place Montrose, CO 81401

E8CE M ake : Continental Motors M odel : TSIO-520-C, -G, -H, -M & -R

Date of application : January 27, 2016

Date of issuance : September 30, 2016

B y direction of the A dministrator

(Signature) Roy E. Boffo III, Manager Propulsion and Program Management Branch Chicago Aircraft Certification Office

(Title)

## Every issue (1)

- September 30, 2016: Issued, Current. [certificate](https://openairdocs.org/files/sha256/f5/4e/f54ec9a1fb9ce4ffc3a99a442e86cb5bd9af2f00127441aa15e8c62447006434)

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