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Aircraft STC directory

Lycoming Engines IO-320-B1D STCs

The Jun 30, 2026 FAA DRS snapshot contains 5 selected supplemental type certificates with status Current whose public applicability data names the Lycoming Engines IO-320-B1D. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

5
listed Current at snapshot
5
holder directories
2
modification categories
Jun 20, 2024
latest recorded revision

Modification demand surface

Other aircraft modifications4
Engine and powerplant1

Recorded holders

Recently revised IO-320-B1D STCs

Showing the 5 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.