# STC SA3638WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: American Navion Society, United States
- Description: Installation of new air induction system with a filter on the alternate air source. (NAVION H Normal and Utility Category)
- Applied: April 15, 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/a1/25/a12588aeb315b4287e58005f42b45eadc141cea2dc8a0cc8524d37d82e1ff696
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2B666BC2231EDDD6862570190060DC2D.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3638WE

## 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 Normal and Utility Category Description of Type Design Change: Installation of new air induction system with a filter on the alternate air source in accordance with Bob Douthitt Installation Instructions No. 21 dated March 15, 1976.

NOTE: Manufacturing data is contained on Bob Douthitt Drawings 1001-1 through –4 dated March 28, 1976.

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.

A Continental 10-520-B engine, in accordance with Aircraft Specification A-782, Item 141, 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 15, 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/a1/25/a12588aeb315b4287e58005f42b45eadc141cea2dc8a0cc8524d37d82e1ff696)

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