# STC SE914NW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: McHugh Aviation Inc, United States
- Description: Installation of a propeller governor adapter with a combination adapter/valve to provide propeller reversing control.
- Applied: February 27, 1980
- Status date: June 25, 2004
- Product: Engine
- Certification basis: Part 13, Part 21
- Data sheets: [TCDS E-228](https://openairdocs.org/tcds/E-228), [TCDS E-275](https://openairdocs.org/tcds/E-275)
- Certificate PDF: https://openairdocs.org/files/sha256/23/79/2379c54af8dc6260b0683e8639c0177e07be0a7177730709cc0ffc4a5484e50a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7768A1472E2E7BFC86256EE6004B77D1.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SE914NW

## ADs that name it (0)

None.

## Approved models (2)

- Textron Lycoming AVCO Corporation GO-435 Series ([TCDS E-228](https://openairdocs.org/tcds/E-228))
- Textron Lycoming AVCO Corporation GO-480 Series ([TCDS E-275](https://openairdocs.org/tcds/E-275))

## 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 SE914NW

This certificate, issued to McHugh Aviation, Inc.

3763 Image Drive Anchorag e, AK 99504

Part 13 of the Civil Air Regulations.

Original ProductType Certificate Number: E-228 E-275 Make: Lycoming Lycoming Model: G0-435 Series G0-480 Series

Description of the Type Design Change: Installation of a propeller governor adapter with a combination adapter/valve to provide propeller reversing control in accordance with Simuflight, Seattle, Drawing List SS-6000, Revision D, dated November 16, 1990, or later FAA approved revisions.

Limitations and Conditions: Approval of this change in type design applies to the above model aircraft only. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the relationship 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 aircraft. A copy of this Certificate shall be maintained as part of the permanent records for the modified aircraft.

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.

Date of application: February 27, 1980 Date reissued: June 25, 2004 Date of issuance: April 3, 1980 Date amended: 5/27/80; 1/5/82; 11/23/90; 6/25/04

(Signature) Acting Manager, Seattle Aircraft Certification Office (Title)

## Every issue (1)

- June 25, 2004: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/23/79/2379c54af8dc6260b0683e8639c0177e07be0a7177730709cc0ffc4a5484e50a)

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