Aircraft STC directory
Beechcraft C90A STCs
The Jun 30, 2026 FAA DRS snapshot contains 13 selected supplemental type certificates with status Current whose public applicability data names the Beechcraft C90A. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
Modification demand surface
Recently revised C90A STCs
Showing the 13 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
Installation of Blackhawk Ultra Electronics Engine Instrument.
FAA holder: Blackhawk Modifications Inc.
The installation of MT-Propeller Entwicklung GmbH's Model# MTV-27-1-E-C-F-R(P)/CFR210-58d 5-Blade propeller.
FAA holder: MT- Propeller Entwicklung GmbH
Installation of approved stretcher on seat rails.
FAA holder: Aviation Fabricators Inc
Reduce maximum number of seats to 9 or less passenger seats.
FAA holder: Fixed Wing Consulting, Wade Neiswender
Installation of VoiceFlight Systems LLC VFS101 Speech Recognition Module.
FAA holder: VoiceFlight Systems LLC
Installation of replacement fuel cell assemblies.
FAA holder: FFC Manufacturing
Installation of P&W Canada PT6A-135 engines and bleed air conditioning and pressurization system.
FAA holder: Blackhawk Modifications Inc.