Aircraft STC directory
New Piper Aircraft PA-23-235 STCs
The Jun 30, 2026 FAA DRS snapshot contains 23 selected supplemental type certificates with status Current whose public applicability data names the New 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.
Modification demand surface
Recorded holders
Recently revised PA-23-235 STCs
Showing the 23 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
Installation of a GDC 31 Roll Steering Converter.
FAA holder: DAC International Inc
Install Egan Aviation Air Ambulance Stretcher P/N 125 using installation kit P/N 800.
FAA holder: Paul/ Lanna Egan LLC
Installation of enlarged cargo door in accordance.
FAA holder: Air-Mods and Repair Inc.
Installation of Champion Limited Authority Spark Advance Regulator (LASARTM) ignition system with Cylinder Head Temperature (CHT) monitoring capability on airframes with FAA approved installations of Textron Lycoming model IO-540, AEIO-540 and HIO-540 engines.
FAA holder: Champion Aerospace LLC
Installation of removable panels on the battery box slides.
FAA holder: Bogert Aviation
Installation of Aero Advantage ADV200 series vacuum pump per Aero Advantage Drawing Number ADVMSI 500 latest FAA approved revision.
FAA holder: Aero Holdings Ltd. a Texas limited partnership
Turbosupercharged Lycoming O-540-A1B5, -A1D5, or -A3D5 engines (S/N's 27-1 thru 27-2504).
FAA holder: GE Engine Services-Corporate Aviation Inc. DBA Garrett Aviation Services
Installation of an electronic digital engine tachometer, horizon model P-1000.
FAA holder: Horizon Instruments Inc
Installation of Composite skinner.
FAA holder: TCB Composite Co.
Installation of a Century Automatic Flight Syste, Model AK1063 consisting of a Century 2110/2130/2131/2150/2150 autopilot.
FAA holder: Century Flight Systems Inc
Replace existing engine induction air filter with AC Spark Plug filter.
FAA holder: Brackett Aero Filters Inc.