Skip to content

Aircraft STC directory

Aeronca Aircraft YO-58 (Army L-3) STCs

The Jun 30, 2026 FAA DRS snapshot contains 3 selected supplemental type certificates with status Current whose public applicability data names the Aeronca Aircraft YO-58 (Army L-3). Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

3
listed Current at snapshot
3
holder directories
2
modification categories
Jul 25, 2008
latest recorded revision

Modification demand surface

Other aircraft modifications2
Engine and powerplant1

Recorded holders

M-20 Oil Separators LLC1EAA Aviation Foundation1Cooper Aviation Supply Company, Inc.1

Recently revised YO-58 (Army L-3) STCs

Showing the 3 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.