SA01340LAAvionics
Installation of Sandel Avionics Terrain Awareness and Warning System.
FAA holder: Sandel Avionics Inc.
Aircraft STC directory
Beechcraft C90 STCs
The Jun 30, 2026 FAA DRS snapshot contains 19 selected supplemental type certificates with status Current whose public applicability data names the Beechcraft C90. 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
11
holder directories
9
modification categories
Jun 23, 2021
latest recorded revision
Modification demand surface
Other aircraft modifications6
Avionics3
Propellers2
Electrical systems2
Cabin and interiors2
Engine and powerplant1
Landing gear and brakes1
Aircraft structures1
Fuel systems1
Recorded holders
Blackhawk Modifications Inc.4Aviation Fabricators Inc2Dynamic Aviation Group Inc.2Sabreliner Aviation LLC1MT- Propeller Entwicklung GmbH1FoxCart GSE, LLC1Securaplane Technologies1FFC Manufacturing1Ontic Engineering and Manufacturing Inc.1Aviall Services, Inc.1DeVore Aviation Corporation of America, a New Mexico Corporation1
Recently revised C90 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
SA10071SCEngine and powerplant
Installation of General Electric engine with Avia propeller.
FAA holder: Sabreliner Aviation LLC
SA01946LAAvionics
Installation of Blackhawk Ultra Electronics Engine Instrument.
FAA holder: Blackhawk Modifications Inc.
SA03507NYPropellers
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
SA1583SWElectrical systems
Foxtronics/TRAMM BT1 600 nickel-cadmium battery temperature system.
FAA holder: FoxCart GSE, LLC
SA2673CECabin and interiors
Installation of approved stretcher on seat rails.
FAA holder: Aviation Fabricators Inc
SA03527NYAvionics
Installation of Universal Avionics UNS-1Lw Flight Management System (FMS) and Bendix/King KGP 560-02 Enhanced Ground Proximity Warning System (EGPWS).
FAA holder: Avionik Straubing GmbH
SA10341SCOther aircraft modifications
Installation of Pratt & Whitney Canada PT6A-135A engines and/or Hartzell four bladed HC-D4N-3C/D9290(S,K) or HCE4N- 3N/D8990S(K) propellers.
FAA holder: Blackhawk Modifications Inc.
SA4328WELanding gear and brakes
Installation of a hydraulic landing gear retraction system.
FAA holder: Dynamic Aviation Group Inc.
SA4537NMAircraft structures
Installation of upper wing reinforcement kit.
FAA holder: Dynamic Aviation Group Inc.
SA01696LAElectrical systems
Installation of Hawker PN 9750W0370 or 9750W0370-8 Series 24V/43AH Sealed Lead Acid Battery.
FAA holder: Securaplane Technologies
SA02717NY PAGE 2Other aircraft modifications
Installation of VoiceFlight Systems LLC VFS101 Speech Recognition Module.
FAA holder: VoiceFlight Systems LLC
SA01335AT-DFuel systems
Installation of replacement fuel cell assemblies.
FAA holder: FFC Manufacturing
SA4705SWOther aircraft modifications
Installation of Pratt & Whitney PT6A-27 or PT6A-28 engines.
FAA holder: Blackhawk Modifications Inc.
SA1022GLPropellers
Removal of T.C. P/N 213762 propeller synchrophaser control box and electrical connector and installation of P/N A213796.
FAA holder: Ontic Engineering and Manufacturing Inc.
SA2740SWOther aircraft modifications
Installation of P&W Canada PT6A-135 engines and bleed air conditioning and pressurization system.
FAA holder: Blackhawk Modifications Inc.
SA1257SOOther aircraft modifications
Install Utah Research and Development Co. Model126BC101battery charging system.
FAA holder: Aviall Services, Inc.
SA3124WEOther aircraft modifications
Installation of recognition light assembly on horizontal stabilizer.
FAA holder: DeVore Aviation Corporation of America, a New Mexico Corporation