SA01844WIFlight controls
Installation of Garmin GFC 600 Automatic Flight Control System.
FAA holder: Garmin International Inc.
Aircraft STC directory
Textron Aviation D55A STCs
The Jun 30, 2026 FAA DRS snapshot contains 17 selected supplemental type certificates with status Current whose public applicability data names the Textron Aviation D55A. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.
17
listed Current at snapshot
12
holder directories
5
modification categories
May 14, 2026
latest recorded revision
Modification demand surface
Other aircraft modifications8
Flight controls3
Landing gear and brakes3
Avionics2
Electrical systems1
Recorded holders
Honeywell International Inc5Gallagher Aviation LLC2Garmin International Inc1McFarlane Aviation LLC1Acron Aviation Inc.1Mid-Continent Instruments and Avionics1Kaman Corporation Aircraft Wheel and Brake LLC1Lee Aerospace Inc.1S-TEC Corporation1Cygnet Aerospace Corp.1Marsh Brothers Aviation Inc1Mike Jones Aircraft Sales Inc.1
Recently revised D55A STCs
Showing the 17 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.
View record
SA01151CHElectrical systems
Installation of battery vent fairing with South Seas Ventures drawing, p/n 15627A, Rev 7, dtd 5/7/01, or later FAA approved revisions.
FAA holder: McFarlane Aviation LLC
SA449CHOther aircraft modifications
Installation of a Traffic Alert and Collision Avoidance System,TCAS I (Model TCAS791/791A).
FAA holder: Acron Aviation Inc.
SA04537CHOther aircraft modifications
Installation of wingtip position/anti-collision light support bracket.
FAA holder: Gallagher Aviation LLC
SA02010WIAvionics
Installation of the Mid-Continent Instruments & Avionics MD23 FLEX Custom Function Display (CFD).
FAA holder: Mid-Continent Instruments and Avionics
SA912GLLanding gear and brakes
Installation of Aircraft Wheel and Brake conversion kit199-138.
FAA holder: Kaman Corporation Aircraft Wheel and Brake LLC
SA00802NYLanding gear and brakes
Installation of Main Landing Gear Auxiliary Landing Lights.
FAA holder: Gallagher Aviation LLC
SA04193NYOther aircraft modifications
Installation of LAI Windshield Heater Assembly.
FAA holder: Lee Aerospace Inc.
SA01034WI-DOther aircraft modifications
Installation of Bendix/King KDR 510 VHF data link system.
FAA holder: Honeywell International Inc
SA00920WI-DAvionics
Installation of Bendix/King KMD 550/850 Multi-Function Display (MFD) system, optional Bendix/King RDR 2000 Wx Radar System, optional Bendix/King KGP 560 General Aviation Enhanced Ground Proximity Warning System (GA-EGPWS) and optional BFGoodrich WX 500 stormscope.
FAA holder: Honeywell International Inc
SA00882WI-DFlight controls
Installation of Bendix/King KFC 225 Automatic Flight Control System.
FAA holder: Honeywell International Inc
SA01076WI-DOther aircraft modifications
Installation of Bendix/King KMH 980 Multi-Hazard Awareness System or KTA 970 Traffic Alert and Collision Avoidance System (TCAS 1).
FAA holder: Honeywell International Inc
SA01148WI-DOther aircraft modifications
Installation of the Bendix/King KI 825 Electronic Horizontal Situation Indicator (EHSI).
FAA holder: Honeywell International Inc
SA09755DSFlight controls
Installation of an S-TEC 01326 Digital Flight Control System (DFCS).
FAA holder: S-TEC Corporation
SA8853SWOther aircraft modifications
Installation of a control yoke anti-theft clamp.
FAA holder: Cygnet Aerospace Corporation
SA03853NYLanding gear and brakes
Installation of Nose Landing Gear Door Hinge Bushings.
FAA holder: Marsh Brothers Aviation Inc
SA01349ATOther aircraft modifications
Installation of winglets, P/N's66000-50 and 66000-51.
FAA holder: Mike Jones Aircraft Sales Inc.