Installation of EarthX ETX680-24-TSO Lithium Battery.
FAA holder: EarthX Inc.
Aircraft STC directory
Textron Aviation LC41-550FG STCs
The cited FAA DRS record snapshots contain 7 selected supplemental type certificates with status Current whose public applicability data names the Textron Aviation LC41-550FG. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
7
listed Current at snapshot
3
holder directories
5
modification categories
Jul 21, 2026
latest recorded revision
Modification demand surface
Recently revised LC41-550FG STCs
Showing the 7 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
Installation of a McCauley Propeller System.
FAA holder: McCauley Propeller Systems
Installation of heat exchanger kit, Kelly Aerospace kit #KATS-11-006,.
FAA holder: Kelly Aerospace Thermal Systems, LLC
Installation of oil cooler door kit.
FAA holder: Kelly Aerospace Thermal Systems LLC
Removal of air conditioning scoop.
FAA holder: Kelly Aerospace Thermal Systems LLC
Modification of exhaust tail pipes.
FAA holder: Kelly Aerospace Thermal Systems LLC