SR04842NYRotorcraft modifications
Installation of RMCI Inc. Expandable Rotorcraft Diagnostic System (XRDS).
FAA holder: Sterling Helicopter
Aircraft STC directory
Leonardo Spa A109S STCs
The Jun 30, 2026 FAA DRS snapshot contains 9 selected supplemental type certificates with status Current whose public applicability data names the Leonardo Spa A109S. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
9
listed Current at snapshot
7
holder directories
4
modification categories
Mar 11, 2025
latest recorded revision
Modification demand surface
Avionics4
Other aircraft modifications2
Cabin and interiors2
Rotorcraft modifications1
Recently revised A109S STCs
Showing the 9 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SR04195CHOther aircraft modifications
Installation of Heli-Preheat Kit, P/N TA3134-1 for 115-volt application.
FAA holder: Hartzell Propeller LLC
SR00182IBAvionics
Installation of the Avidyne Integrated Flight Display (IFD) Navigator(s).
FAA holder: Horizon Design Services Ltd.
SR04557ATCabin and interiors
Cabin and crew floor protector installations.
FAA holder: Helifab East LLC
SR09917ACCabin and interiors
Installation of an Advanced Life Support System (ALSS) airborne EMS air ambulance interior.
FAA holder: AMS Heli Design LLC
SR00949SEOther aircraft modifications
Fabrication of Dart D119-647-011 Bearpaws.
FAA holder: Dart Aerospace USA Inc.
SR04453CHAvionics
Installation of Appareo Systems LLC Stratus ES & Stratus ESG ADS-B transponder.
FAA holder: Appareo Systems LLC
SR04390CHAvionics
Installation of an Electronic Flight Instrument System (EFIS) in accordance with StandardAero Master Data List 1036284, Revision (B), dated June 5, 2019 or later FAA approved revision.
FAA holder: StandardAero Business Aviation Services LLC
SR02377AKAvionics
Installation of a fixed mounted Max-Viz Enhanced Vision System (EVS) Model 1500 to include a sensor Line Replaceable Unit (LRU) with conformal housing, power supply, Detached Electrical Box (DEB) and a glareshield-mounted, dedicated display monitor.
FAA holder: Avio Design Group Inc