# STC SE3782NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Western Skyways Aircraft Modifications Inc., United States
- Description: Installation of an intercooler in the engine air induction system.
- Applied: February 1, 1988
- Status date: March 8, 2023
- Product: Engine
- Data sheets: [TCDS E8CE](https://openairdocs.org/tcds/E8CE)
- Certificate PDF: https://openairdocs.org/files/sha256/69/f6/69f67ae3067b69133952f7a13fb5fe106d3ec4c0e01f9625a33bb12b05cf64e9
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173431014720240322140820.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SE3782NM

## ADs that name it (0)

None.

## Approved models (1)

- Continental Aerospace Technologies Inc. TSIO-520-M ([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.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SE3782NM Possession on this Supplemental Type Certificate (STC) document by persons other than the STC holder does not constitute rights to the design data nor to alter an aircraft, aircraft engine, or propeller. The STC ’s supporting documentation (drawings, instructions, specifications, flight manual supplements, etc.) is the property of the STC holder. An STC holder who allows a person to alter an aircraft, aircraft engine, or propeller must provide that person with written permission acceptable to the FAA. (Ref. 14 CFR 21.120).

FAA Form 8110-2 (6/20) SUPERSEDES PREVIOUS EDITION Page 1 of 2

This certificate issued to: Western Skyways Aircraft Modifications Inc.

333 West Boulevard, Suite 400 Rapid City, SD 57701

Part 13 of the Civil Air Regulations. Effective June 11, 1976.

Original Product Type Certificate Number: E8CE

Make: Continental Aerospace Technologies, INC.

Model: TSIO-520M Installation of an intercooler in the engine air induction system per Riley International Corp. Master Drawing List R17801, Revision N/C, dated February 19, 1988, or later FAA approved revisions.

The approval of this change in type design requires installation of STC No. SA3781NM and is restricted to the basic engines of the specified models that are otherwise unmodified. This approval should not be extended to other engines of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that engine. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

The STC ’s supporting documentation (drawings, instructions, specifications, flight manual supplements, etc.) is the property of the STC holder. An STC holder who allows a person to alter an aircraft, aircraft engine, or propeller must provide that person with written permission acceptable to the FAA. (Ref. 14 CFR 21.120).

FAA Form 8110-2 (6/20) SUPERSEDES PREVIOUS EDITION Page 2 of 2

## Every issue (2)

- March 8, 2023: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/69/f6/69f67ae3067b69133952f7a13fb5fe106d3ec4c0e01f9625a33bb12b05cf64e9)
- May 20, 2019: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/9e/7e/9e7e89624d99e81749deb25698104b84cfee18073973a05d04aec68fa09a9e21)

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