FAA-listed STC holder
Signature Flight Support Corporation STCs
The Jun 30, 2026 FAA DRS snapshot lists 310 selected supplemental type certificates with status Current under Signature Flight Support Corporation. The records span 97 public aircraft directories and 14 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.
Modification mix
Aircraft represented
Recently revised records
Showing the 100 most recently revised records. Category directories provide the complete paginated discovery path.
100 displayed records.
Search every indexed record for this holder. The table below contains the recently revised records shown on this page.
| STC and modification | Aircraft / model / TC | Source status and dates | Holder and authority |
|---|---|---|---|
SA74GLInstall wing tip recognition lights.Aircraft structuresView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1592SWInstallation of battery temperature indicating system.Electrical systemsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1016SWInstallation of Collins AL-101 radio altimeter.AvionicsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1037SWInstallation of emergency lights and battery.Electrical systemsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1057SWInstallation of dual Collins FD-109 Flight Director System.AvionicsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA105SWInstallation of landing gear doors.Landing gear and brakesView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA106SWInstallation of Model M-4 autopilot.AvionicsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA107SWInstallation of alcohol deicing system.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1092SWInstallation of dual Sperry SPI-73 flight director systems.AvionicsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1105SWInstallation of flight data and cockpit voice recorder.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1121SWInstallation of Collins AL-101 radio altimeter.AvionicsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1149SWInstallation of a hot water heater.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1150SWInstallation of Litton LTN 51 inertial navigation system.AvionicsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1180SWChair installation.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1214SWInstallation of radio racks.AvionicsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1215SWInstrument panel modification.AvionicsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1216SWBattery relocation and installation.Electrical systemsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA129SWInstallation of empennage saddle-back fairing.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA130SWInstallation of 35,000 B.T.U. combustion heater.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1317SWRevised battery installation.Electrical systemsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1336SWInstallation of pressure refueling control system.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1364SWInstallation of emergency lighting system.Safety and emergency equipmentView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1389SWInstallation of auxiliary power unit Solar T62T-39 and Hamilton Standard simple/bootstrap air cycle unit Model R70-3W.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA13SWInstallation of ground operated APU.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1440SWSeparation of hydraulic pump seal drain from engine drain manifold.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1457SWModification of pressurization and air conditioning system.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA145SWInstalled cabin door (hinged at the bottom).Cabin and interiorsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA146SWInstallation of Lear L5 autopilot.AvionicsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA150SWInstalled Southwind Heater, one in each side of center wing section.Aircraft structuresView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA151SWInstalled windshield anti-icer system and three-gallon tank.Fuel systemsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1553SWInstallation of dual Collins INS-618 inertial navigation units.AvionicsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1593SWInstallation of individual battery control relay system.Electrical systemsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1605SWInstallation of a Microcom battery temperature indicator system and a battery isolation system.Electrical systemsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1606SWInstallation of Microcom battery temperature indicator system and battery isolation system.Electrical systemsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1617SWInstallation of outside oxygen service.Safety and emergency equipmentView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1662SWInstallation of outboard fuel system.Fuel systemsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1724SWInstallation of freon air conditioner.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1730SWInstallation of aileron trim tab.Flight controlsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1739SWInstallation of storage box in tail cone.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1742SWInstallation of vapor cycle air conditioning system.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA177SWInstallation of tail cone.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA17SWInstallation of electric trim tab servo.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA181SWInstallation of oxygen system.Safety and emergency equipmentView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA183SWInstallation of air conditioner.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1860SWInstallation of dual Sperry SPI-77A flight director system.AvionicsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1861SWInstallation of Sperry ADC-200 altitude computer and Sperry 2593564-910 altitude preselect systems.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1869SWInstallation of two Hamilton Standard air cycle refrigeration units.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA187SWFirewall fluid shutoff valve installation.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA188SWInstallation of Scene-A-Ramic cabin windows.Cabin and interiorsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA18SWInstallation of carburetor adapter.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1915SWInstallation of emergency lighting.Safety and emergency equipmentView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1926SWInstallation of Fuel purge system.Fuel systemsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA192SWInstallation of Mighty Midget hydraulic selector (flap and gear).Flight controlsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA194SWInstallation of cockpit side windows.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1962SWInstallation of generator overvoltage/over-current protection.Electrical systemsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1993SWInstallation of wing ice lights.Aircraft structuresView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA1994SWInstallation of jump seat.Cabin and interiorsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-100Installation of electric trim actuator.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-102Installation of Emergency Fluid Shut-Off Valves.Safety and emergency equipmentView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1020Interior arrangement in the cabin from Station 133 to 525.Cabin and interiorsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-103Installation of anti-collision lights.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-105Installation of 36-inch length picture windows between Stations 279 and 392.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1071Manufacture of alcohol under wing to fuselage fillet tanks, P/N 352581, to replace Douglas alcohol tanks P/N 5161344 or 5188619, and mounting bracket P/N 352573 replacing the Douglas brackets P/N 5161873-46, -48, -52, -54 and Douglas P/N 4161884 and 4161882.Aircraft structuresView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1078Installation of flight line nose heater.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-109Installation of instrument panel.AvionicsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1126Rudder anti-overbalance springs.Flight controlsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1127Main landing gear and tail gear metering pins modified.Landing gear and brakesView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1128Installation of elevator spring tab, trim tab, nose down spring and elevator bellcrank station 561.Flight controlsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1129Hydraulic system pressure increase to 1050 p.s.i.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1132Installation of picture windows and/or emergency exit.Safety and emergency equipmentView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1133Installation of integrated alcohol system.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1136Installed a Lear rotary electric actuator No. 164EK in carburetor air control valve linkage.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1148Installation of VOR antenna on vertical fin.Aircraft connectivityView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1158Fuel tank access port cover wing centersection L-18.Fuel systemsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1159Installation of anti-ice system.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1165Modification to hydraulic system.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1166Installation of fuel system.Fuel systemsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1167Installation of Dual Jato.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1170Installation of de-icer boot vacuum system.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-118Installation of short horizontal stabilizer tips and related equipment.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1181Installation of flap speed restricting system L-18.Flight controlsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-128Increase incidence of horizontal stabilizer.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-129Exhaust system revised.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-130Fuel system installed.Fuel systemsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-14Aircraft structure altered.Other aircraft modificationsView record |
| Current at cited snapshot Application: Not listed | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-145Installation of commode-hassock.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-148Install aft baggage compartment support structure.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1517Centersection structural rework.Other aircraft modificationsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1518Rudder and aileron interconnect installation.Flight controlsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1521Installation of fuel dump systems.Fuel systemsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1522Modification of powerplant installation.Engine and powerplantView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1523Propeller autofeathering system installation.PropellersView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1531Installation of wing tips and related equipment.Aircraft structuresView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1532Installation of stall warning system.Safety and emergency equipmentView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1538Replaced the wing flap fabric covering with aluminum sheet.Flight controlsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-154Installation of L712006-502 or503 Airspeed System.Aircraft performanceView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1553Stall warning system.Safety and emergency equipmentView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1554Increase gross weight to 22,050 pounds takeoff and 20,500 pounds landing.Aircraft performanceView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-1571Installation of PV-1 oil tank modified to 20 US gallons.Fuel systemsView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |
SA2-163Installation of airspeed system.Aircraft performanceView record |
| Current at cited snapshot Application: | FAA holder: Signature Flight Support Corporation FAA authority record |