Aircraft STC directory
Piper Aircraft PA-31T1 STCs
The Jun 30, 2026 FAA DRS snapshot contains 30 selected supplemental type certificates with status Current whose public applicability data names the Piper Aircraft PA-31T1. 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-31T1 STCs
Showing the 30 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
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
Installation of Blackhawk Ultra Electronics Engine Instrument.
FAA holder: Blackhawk Modifications 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 C&D Associates Combustion Heater Kit 30 (P/N CD11003K30).
FAA holder: Hartzell Engine Technologies, LLC
Installation of Model MTV-27-1-E-C-F-R(P)/CFR210-58d 5-bladed, full feathering, reversible wood composite propellers.
FAA holder: MT- Propeller Entwicklung GmbH
Installation of Pratt and Whitney engines and Hartzell propellers.
FAA holder: Standard Aero Inc
Installation of a stretcher in place of two passenger seats.
FAA holder: Airline Fueling Inc.
Installation of McCauley propeller model 4HFR34C766/94LNA-2.
FAA holder: McCauley Propeller Systems
Installation of left and right hand side fuel cell assemblies.
FAA holder: FFC Manufacturing
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 two Hartzell HC-E4N-3N/D8990SB propellers.
FAA holder: Blackhawk Modifications Inc.
Installation of Aero Crafters' exhaust heater system kit.
FAA holder: Aero Crafter Products Inc.
Installation of monorail sun visor system.
FAA holder: Rosen Sunvisor Systems LLC
Installation of Aircraft Noise Control (ANC) System.
FAA holder: Quiet Flight LLC
Replace existing nickel-cadmium batteries with Teledyne Battery Products G-6381E and G-6381ES.
FAA holder: Teledyne Battery Products
Installation of single lamp logo light in horizontal tail.
FAA holder: DeVore Aviation Corporation of America, a New Mexico Corporation