Installation of EarthX ETX680-24-TSO Lithium Battery.
FAA holder: EarthX Inc.
Aircraft STC directory
Textron Aviation 210M STCs
The cited FAA DRS record snapshots contain 26 selected supplemental type certificates with status Current whose public applicability data names the Textron Aviation 210M. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
26
listed Current at snapshot
16
holder directories
11
modification categories
Jul 21, 2026
latest recorded revision
Modification demand surface
Recorded holders
Honeywell International Inc4Sierra Industries Ltd.4Summit Aviation Inc.2Western Skyways Aircraft Modifications Inc.1Kelly Aerospace Thermal Systems LLC1CAV Ice Protection Inc1Curry Aviation LLC1Aero-Mach Wilco LLC1CE Aerostructures LLC1S-TEC Corporation1Electronics International Inc.1Fliegen Works Inc.1Sierra Industries Inc1Vitatoe Aviation LLC1Griggs Aircraft Refinishing LLC1Knots 2U Ltd.1
Recently revised 210M STCs
Showing the 26 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
Installation of an engine modified per STC SE0417CH.
FAA holder: Western Skyways Aircraft Modifications Inc.
Installation of electric air conditions system Kelly Aerospace kit #KATS-20-004.
FAA holder: Kelly Aerospace Thermal Systems LLC
Installation of additional equipment for approval for flight into icing.
FAA holder: CAV Ice Protection Inc.
Installation of leading edge cuffs, droop tips, and stall fences.
FAA holder: Curry Aviation LLC
Installation of a dual-isolator forward engine mount system.
FAA holder: Summit Aviation Inc.
Installation of LED Position Lights.
FAA holder: Aero-Mach Wilco LLC
Recessed camera port at the co-pilot seat location.
FAA holder: CE Aerostructures LLC
Installation of a Roll Disable System for Bendix/King KFC 225 Automatic Flight Control System.
FAA holder: Honeywell International Inc
Installation of Bendix/King KFC 225 Automatic Flight Control System.
FAA holder: Honeywell International Inc
Installation of King Model KFC-200 two axis flight control system with or without flight director.
FAA holder: Honeywell International Inc
Installation of an S-TEC 01326 Digital Flight Control System (DFCS).
FAA holder: S-TEC Corporation
Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data).
FAA holder: Electronics International Inc.
Installation of recontoured wing leading edge and stall fences.
FAA holder: Sierra Industries Ltd.
Convert hydraulic nose gear door actuating system to mechanical system.
FAA holder: Sierra Industries Ltd.
Installation of Teledyne Continental Motors IO-520-A & -F (as modified by STC SE03704AT) or IO-550 F (as modified by STC SE03705AT) and Hartzell Propeller (P)HC-(C or J)3YF-1RF/F8468(B,K) 3 bladed metal propeller, or McCauley Propeller models D3A34C401/90DFA-() or D3A34C402/90DFA-().
FAA holder: Vitatoe Aviation LLC
Installation of an aft baggage compartment auxiliary fuel tank and transfer system to the right wing tank.
FAA holder: Griggs Aircraft Refinishing LLC
Installation of an ISTART Starting Enhancement System.
FAA holder: IStart Partners, Ltd.
Installation of an Avidyne EXP5000 Primary Flight Display (PFD).
FAA holder: Star Aviation