Aircraft STC directory
Piper Aircraft PA-31P STCs
The Jun 30, 2026 FAA DRS snapshot contains 39 selected supplemental type certificates with status Current whose public applicability data names the Piper Aircraft PA-31P. 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-31P STCs
Showing the 39 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
Installation of engines modified with Firewall Forward Technologies LLC modified camshaft.
FAA holder: Centri-Lube Technologies LLC
Install Cleveland Conversion Kit P/N 199-83.
FAA holder: Kaman Corporation Aircraft Wheel and Brake LLC
Installation of BendixKing Aerowave 100 In-flight Data Link System for non-essential, non-required aircraft Cabin Systems & Equipments.
FAA holder: Honeywell International Inc (Bendix King)
Installation of an S-TEC 01326 Digital Flight Control System (DFCS).
FAA holder: S-TEC Corporation
Install air ambulance conversion.
FAA holder: Spectrum Aeromed LLC dba Spectrum Aeromed
Installation of external aft body strakes.
FAA holder: Aircraft Performance Modifications
Replacement of certain Goodrich pneumatic deicer boots.
FAA holder: Goodrich Corp.
Installation of pneumatic de-icer timer kit.
FAA holder: BE Aerospace Inc. DBA SMR Technologies, Inc.
Replace Janitrol combustion heater Model 81D94-X (XX) with C&D Associates combustion heater Model CD25K, CD35K, and CD45K.
FAA holder: Hartzell Engine Technologies, LLC
Installation of Inline Pneumatic Air Filter, P/N CV1J4.
FAA holder: Aerotech Components Inc
Installation of Aerospace Logic Aircraft Instruments.
FAA holder: Aerospace Logic Inc.
Installation of winglets.
FAA holder: Mike Jones Aircraft Sales Inc.
Installation of 40:1 gear ratio wing flap transmissions and related changes in accordance with Colemill Enterprises, Inc., Installation Instructions dated February 16, 1983, or later FAA approved revision. This modification provides and equivalent means of compliance with paragraphs (a)1, (a)2, and (a)4 of AD 82-27-13 and restores the 40 (full) flap travel.
FAA holder: Mike Jones Aircraft Sales Inc.
Installation of dual camera port.
FAA holder: Schafer Aircraft Modifications Inc.
Installation of a stretcher in place of two passenger seats.
FAA holder: Airline Fueling Inc.
Installation of left hand side and right hand side main tank fuel cell assemblies.
FAA holder: FFC Manufacturing
Installation of left hand and right hand nacelle fuel cell assemblies.
FAA holder: FFC Manufacturing
Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) MVP-50P.
FAA holder: Electronics International Inc.
Installation of left hand and right hand auxiliary tanks fuel cell assemblies.
FAA holder: FFC Manufacturing
Replacement of inboard main landing gear door with an aerodynamic fairing.
FAA holder: Aircraft Restoration Corporation
Installation of Grimes 555 Series three light strobe kit P/N 34-0100-1.
FAA holder: Honeywell International Inc.
Installation of Aero Crafters' exhaust heater system kit.
FAA holder: Aero Crafter Products Inc.
Installation of Oilamatic preoiler system.
FAA holder: Oilamatic Inc
Conversion of existing Piper air conditioning system from R12 to R134a refrigerant.
FAA holder: Steinbach & Associates, Inc.
Installation of Aircraft Noise Control (ANC) System.
FAA holder: Quiet Flight LLC
Installation of single lamp logo light in horizontal tail.
FAA holder: DeVore Aviation Corporation of America, a New Mexico Corporation