Installation of L-3 Communications Avionics Systems.
FAA holder: Acron Aviation Inc.
Aircraft STC directory
Piper Aircraft PA-23-235 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-23-235. 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
22
holder directories
10
modification categories
Apr 1, 2025
latest recorded revision
Modification demand surface
Recorded holders
Airline Fueling Inc.5Honeywell International Inc4Brittain Industries, Inc4CiES Inc.2Garmin International Inc2Sierra Industries Ltd.2BF Goodrich Aerospace2J P Instruments2Acron Aviation Inc.1MT- Propeller Entwicklung GmbH1Honeywell International Inc (Bendix King)1Avidyne Corporation1Alpha Aviation Inc1Hartzell Engine Technologies, LLC1Seaplanes North LLC1Storehouse LLC1Icarus Avionics, LLC1FFC Manufacturing1Garmin AT Inc.1Oilamatic Inc1
Recently revised PA-23-235 STCs
Showing the 41 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
Installation of the MT-Propeller Entwicklung GmbH model MTV-12-B-C-F/CF188-53() propeller.
FAA holder: MT-Propeller Entwicklung GmbH
KFD 900 Primary Flight Display System Additional Functions.
FAA holder: Honeywell International Inc
Installation of BendixKing by Honeywell KSN 770 and KSN 765 WAAS LPV approach capable nav/comm systems.
FAA holder: Honeywell International Inc (Bendix King)
Installation of a SkyTrax100B UAT receiver.
FAA holder: Avidyne Corporation
Installation of the Honeywell KFD 840 Primary Flight Display System.
FAA holder: Honeywell International Inc
Installation of Garmin G600 Primary Flight Display (PFD) and Multifunction Display (MFD) System.
FAA holder: Garmin International Inc.
Installation of dual hydraulic pump.
FAA holder: Sierra Industries Ltd.
Installation of a FreeFlight 1201 GPS receiver, with an Avidyne AXP340 Transponder, for ADS-B Out.
FAA holder: Trego Dugan Aviation
Installation of Brittain Up-Command Signal Adapter Kit.
FAA holder: Brittain Industries, Inc
Installation of Brittain Industries, Inc. New Matic Pitch Assist Model PC-1.
FAA holder: Brittain Industries, Inc
Increase of a Three Point Torso Restraint System.
FAA holder: Alpha Aviation Inc
Installation of C&D Associates Combustion Heater Kit.
FAA holder: Hartzell Engine Technologies, LLC
Installation of Garmin GTS 825 (TAS) or GTS 855 (TCAS I) Traffic System.
FAA holder: Garmin International Inc
Installation of 718-1 instrument panel assembly or optional 718-3 assembly.
FAA holder: Apache Modification Aircraft Corporation
Installation of Brittain Industries, Inc. Model B2C Flight Control System.
FAA holder: Brittain Industries, Inc
Extended nose with baggage compartment.
FAA holder: Airline Fueling Inc.
Fabrication and installation of engine control levers.
FAA holder: Apache Modification Aircraft Corporation
Installation of Grimes three light strobe kit P/N 34-0101-2 as supplemental lighting.
FAA holder: Honeywell International Inc.
Installation of Oilamatic preoiler system.
FAA holder: Oilamatic Inc
Installation of DeVore vertical tail floodlights on upper surface of stabilator.
FAA holder: DeVore Aviation Corporation of America, a New Mexico Corporation