Aircraft STC directory
Lycoming Engines O-320-A1A STCs
The Jun 30, 2026 FAA DRS snapshot contains 3 selected supplemental type certificates with status Current whose public applicability data names the Lycoming Engines O-320-A1A. 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
Oct 31, 2016
latest recorded revision
Modification demand surface
Recently revised O-320-A1A STCs
Showing the 3 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.