Avionics DevelopmentWT21 DevelopmentWT21 Plugin APIShared Plugin APIInterfacesFmcSimVarEventsOn this pageInterface: FmcSimVarEvents Defined in: workingtitle-instruments-wt21/shared/FmcSimVars.ts:6 Events published by the FMC system on the bus. Properties fmcExecActive fmcExecActive: number Defined in: workingtitle-instruments-wt21/shared/FmcSimVars.ts:8 FMC Exec State.