"PrevAcLegType": { "type": "object", "title": "AircraftPreviousFlightLeg", "description": "The sequence of the previous aircraft's flight leg.", "additionalProperties": false, "properties": { "FlightId": { "$ref": "#/definitions/FlightAcidType" }, "ScheduledArrival": { "$ref": "#/definitions/DateTimeType" } }, "required": [ "FlightId", "ScheduledArrival" ] }