FAA-listed STC holder

American Navion Society STCs

The Jun 30, 2026 FAA DRS snapshot lists 4 selected supplemental type certificates with status Current under American Navion Society. The records span 8 public aircraft directories and 3 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.

listed Current at snapshot

aircraft directories

modification categories

Mar 11, 2004

latest recorded revision

Modification mix

Other aircraft modifications2 Fuel systems1 Propellers1

Aircraft represented

Navion Aircraft Navion B20 STCs Navion Aircraft Navion D17 STCs Navion Aircraft Navion E16 STCs Navion Aircraft Navion F15 STCs Navion Aircraft Navion G15 STCs Navion Aircraft Navion H14 STCs Navion Aircraft Navion A (Army L-17B and L-17C)13 STCs Navion Aircraft Navion (Army L-17A)6 STCs

Recently revised records

Showing the 4 most recently revised records. Category directories provide the complete paginated discovery path.

4 displayed records.

Search every indexed record for this holder. The table below contains the recently revised records shown on this page.

American Navion Society supplemental type certificates, aircraft applicability, source status and dates
STC and modification	Aircraft / model / TC	Source status and dates	Holder and authority
SA3638WE Installation of new air induction system with a filter on the alternate air source. (NAVION H Normal and Utility Category). Other aircraft modifications View record	Navion Aircraft Navion A (Army L-17B and L-17C)TC A-782 Navion Aircraft Navion BTC A-782 Navion Aircraft Navion DTC A-782 Navion Aircraft Navion ETC A-782 Navion Aircraft Navion FTC A-782 Navion Aircraft Navion GTC A-782 Navion Aircraft Navion HTC A-782	Current at cited snapshot Revised Mar 11, 2004 Application: Apr 15, 1978	FAA holder: American Navion Society FAA authority record
SA3639WE 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. Fuel systems View record	Navion Aircraft Navion A (Army L-17B and L-17C)TC A-782 Navion Aircraft Navion BTC A-782 Navion Aircraft Navion DTC A-782 Navion Aircraft Navion ETC A-782 Navion Aircraft Navion FTC A-782 Navion Aircraft Navion GTC A-782 Navion Aircraft Navion HTC A-782	Current at cited snapshot Revised Mar 11, 2004 Application: Apr 10, 1978	FAA holder: American Navion Society FAA authority record
SA4-118 Hartzell HC-12X20-7C/8433-0 propeller including governor kit. Propellers View record	Navion Aircraft Navion A (Army L-17B and L-17C)TC A-782 Navion Aircraft Navion BTC A-782 Navion Aircraft Navion DTC A-782 Navion Aircraft Navion ETC A-782 Navion Aircraft Navion FTC A-782 Navion Aircraft Navion GTC A-782 Navion Aircraft Navion HTC A-782 Navion Aircraft Navion (Army L-17A)TC A-782	Current at cited snapshot Revised Mar 11, 2004 Application: Not listed	FAA holder: American Navion Society FAA authority record
SA4-229 1. Removal or original step and installing Retractable step and handle. 2. Installation in accordance with Robert Douthitt s Sheet number 1 to Sheet number 10 and Installation Instructions. Other aircraft modifications View record	Navion Aircraft Navion A (Army L-17B and L-17C)TC A-782 Navion Aircraft Navion BTC A-782 Navion Aircraft Navion (Army L-17A)TC A-782	Current at cited snapshot Revised Feb 11, 2004 Application: Apr 20, 1957	FAA holder: American Navion Society FAA authority record

Modification mix

Aircraft represented

Recently revised records

Installation of new air induction system with a filter on the alternate air source. (NAVION H Normal and Utility Category).

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.

Hartzell HC-12X20-7C/8433-0 propeller including governor kit.

1. Removal or original step and installing Retractable step and handle. 2. Installation in accordance with Robert Douthitt s Sheet number 1 to Sheet number 10 and Installation Instructions.