SA706GLLanding gear and brakes
Install Cleveland conversion kit P/N 199-122 (for aircraft using MIL-H05606 brake fluid), or199-122A (for aircraft using 'Skydrol' brake fluid).
FAA holder: Kaman Corporation Aircraft Wheel and Brake LLC
Aircraft STC directory
Twin Commander Aircraft 500 STCs
The Jun 30, 2026 FAA DRS snapshot contains 19 selected supplemental type certificates with status Current whose public applicability data names the Twin Commander Aircraft 500. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
19
listed Current at snapshot
16
holder directories
10
modification categories
Sep 19, 2022
latest recorded revision
Modification demand surface
Other aircraft modifications5
Fuel systems3
Landing gear and brakes2
Flight controls2
Aircraft structures2
Aircraft connectivity1
Electrical systems1
Engine and powerplant1
Propellers1
Cabin and interiors1
Recorded holders
Kaman Corporation Aircraft Wheel and Brake LLC2BF Goodrich Aerospace2S-TEC Corporation1Avidyne Corporation1Brittain Industries, Inc1Hartzell Engine Technologies, LLC1Aircraft Components Inc1Twin Commander Aircraft LLC1Merlyn Products Inc.1FFC Manufacturing1Hartzell Propeller Inc1Aircenter Inc1SMR Technologies Inc1Rosen Sunvisor Systems LLC1Floats & Fuel Cells1DeVore Aviation Corporation of America, a New Mexico Corporation1
Recently revised 500 STCs
Showing the 19 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SA1457GLLanding gear and brakes
Installation of a Cleveland nose wheel.
FAA holder: Kaman Corporation Aircraft Wheel and Brake LLC
SA09763DSFlight controls
Installation of an S-TEC 01326 Digital Flight Control System (DFCS).
FAA holder: S-TEC Corporation
SA00382BO (PAGE 2)Aircraft connectivity
Installation of Globalstar Antenna and Cradle provisions to support a Globalstar GPS-1700 in non-composite airplanes.
FAA holder: Avidyne Corporation
SA4-1414Flight controls
Installed Brittain Industries, Inc., B2D Flight Control System.
FAA holder: Brittain Industries, Inc
SA01660CHOther aircraft modifications
Remove Janitrol P/N C15C54 or Twin Commander P/N 88035-5 combustion heater and install C&D Associates, Inc. Model CD35K heater kit 10 P/N CD12043K10.
FAA holder: Hartzell Engine Technologies, LLC
SA02547AT (PG 3)Other aircraft modifications
Installation of a Voice Alert System.
FAA holder: Aircraft Components Inc
SA260SWElectrical systems
Installation of a Protective Device in the ground side of the Battery and External Power relays.
FAA holder: Twin Commander Aircraft LLC
SA404CEAircraft structures
Installation of Hoskins supplemental position light system which includes Model A wing tip lights and Model D or K(dual) tail light.
FAA holder: BF Goodrich Aerospace
SA90CEAircraft structures
Installation of Hoskins Supple- mental Model A or B, high intensity wing tip lights, Model C tail light, with or without Models 1 or 2 high intensity fuselage lights.
FAA holder: BF Goodrich Aerospace
SA00794CHFuel systems
Replace Twin Commander fuel cap assembly with Shaw Aero Devices Fuel Cap (P/N 416-50) and adapter (P/N 416-938).
FAA holder: Commander Aero Inc
SA02013SEEngine and powerplant
Modification of the fuel system, structures, and engine installation.
FAA holder: Merlyn Products Inc.
SA01956AT-DFuel systems
Installation of replacement fuel cell assemblies.
FAA holder: FFC Manufacturing
SA01792SEPropellers
Installation of the Hartzell HC-C3YR-2UF/FC8468(A)(B,K)-6R propeller and the Hartzell C-3258 (P) spinner assembly.
FAA holder: Hartzell Propeller Inc
SA02005NYOther aircraft modifications
Installation of SMR Technologies pneumatic deicer models.
FAA holder: SMR Technologies Inc
SA3335NMOther aircraft modifications
Cockpit Sun Visor installation in accordance with FAA approved Rosen Drawing List Number RAC-00DL, dated January 7, 1986, or later FAA approved revision.
FAA holder: Rosen Sunvisor Systems LLC
SA8597SWFuel systems
Installation of P/N DF062-507, upper center fuel tank bladder cells as a replacement for original bladder P/N 5630062-507.
FAA holder: Floats & Fuel Cells
SA1017EAOther aircraft modifications
Installation of vertical tail floodlights.
FAA holder: DeVore Aviation Corporation of America, a New Mexico Corporation