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Aircraft STC directory

Piper Aircraft PA-23 STCs

The Jun 30, 2026 FAA DRS snapshot contains 41 selected supplemental type certificates with status Current whose public applicability data names the Piper Aircraft PA-23. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

41
listed Current at snapshot
20
holder directories
9
modification categories
Apr 1, 2025
latest recorded revision

Modification demand surface

Other aircraft modifications15Avionics10Fuel systems5Flight controls4Aircraft structures3Aircraft performance1Landing gear and brakes1Engine and powerplant1Aircraft connectivity1

Recorded holders

Brittain Industries, Inc6Honeywell International Inc4Airline Fueling Inc.4Hartzell Engine Technologies, LLC3CiES Inc.2Garmin International Inc2BF Goodrich Aerospace2D'Shannon Products Ltd.2J P Instruments2Acron Aviation Inc.1Avidyne Corporation1Alpha Aviation Inc1Seaplanes North LLC1Storehouse LLC1Icarus Avionics, LLC1FFC Manufacturing1Garmin AT Inc.1Oilamatic Inc1Machen Inc1Aviation Research Corporation1

Recently revised PA-23 STCs

Showing the 41 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.