# STC SA3639WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: American Navion Society, United States
- Description: Installation of warning light intended to prevent inadvertent operation of the aircraft on the aircraft on the tip tank fuel system while in the landing or take-off configuration, i.e., gear down.
- Applied: April 10, 1978
- Status date: March 11, 2004
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-782](https://openairdocs.org/tcds/A-782)
- Certificate PDF: https://openairdocs.org/files/sha256/dc/24/dc24994a03063ce1911284ba8babc9dd1e0f13c56c30a5af36698552c0cfa96f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FB27D36CB0FE9BEB8625701900612E67.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3639WE

## ADs that name it (0)

None.

## Approved models (7)

- Navion Aircraft Company Ltd. Navion A (Army L-17B and L-17C) ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Navion Aircraft Company Ltd. Navion B ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Navion Aircraft Company Ltd. Navion D ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Navion Aircraft Company Ltd. Navion E ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Navion Aircraft Company Ltd. Navion F ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Navion Aircraft Company Ltd. Navion G ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Navion Aircraft Company Ltd. Navion H ([TCDS A-782](https://openairdocs.org/tcds/A-782))

## 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 This certificate reissued to replace certificate reported lost

This Certificate issued to AMERICAN NAVION SOCIETY PMB 335, 16420 SE McGillivray, Suite 103 Vancouver, Washington 98683-3461 Part * of the Civil Air Regulations. *Certification basis is set forth in Type Certificate Data Sheet A-782.

A-782 NAVION Navion A, -B, -D, -E, -F, -G, and –H Description of Type Design Change: Installation of warning light intended to prevent inadvertent operation of the aircraft on the tip tank fuel system while in the landing or take-off configuration, i.e., gear down. Robert Douthitt Installation Instructions dated April 10, 1978 is required.

Limitations and Conditions: This approval should not be extended to other specific airplanes 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 will introduce no adverse effect upon the airworthiness of that airplane. Robert Douthitt FAA Approved Airplane Flight Manual Supplement dated May 3, 1978 is required.

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 : April 10, 1978

Date of issuance : May 3, 1978

Date reissued : March 11, 2004

( Signature)

Manager, Technical & Administrative Support Staff, Los Angeles Aircraft Certification Office ( Title)

## Every issue (1)

- March 11, 2004: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/dc/24/dc24994a03063ce1911284ba8babc9dd1e0f13c56c30a5af36698552c0cfa96f)

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