ADSRFMessageSetVersion1 DEFINITIONS ::= BEGIN IMPORTS AbortReason, ADSEmergencyReport, ADSReport,AircraftAddress, EventTypeReported FROM ADSMessageSetVersion1; ADSRFPDUs ::= CHOICE { aDS-forwarded-report-PDU [0] ADSForwardedReport, aDS-provider-abort-PDU [1] AbortReason, ... } ADSForwardedReport ::= SEQUENCE { aircraftAddress AircraftAddress, forwardedADSReport ForwardedReport } ForwardedReport::= CHOICE { aDSDemandReport [0] ADSReport, aDSPeriodicReport [1] ADSReport, aDSEventReport [2] SEQUENCE { event-type EventTypeReported, aDSReport ADSReport }, aDSEmergencyReport [3] ADSEmergencyReport } END -- of ADSRFMessageSetVersion1