code: def set_airport_locations
        depairport = Vatsim::Airport.get(planned_depairport)
        destairport = Vatsim::Airport.get(planned_destairport)
        @planned_depairport_lat = depairport.nil? ? 0 : depairport.latitude
        @planned_depairport_lon = depairport.nil? ? 0 : depairport.longitude
        @planned_destairport_lat = destairport.nil? ? 0 : destairport.latitude
        @planned_destairport_lon = destairport.nil? ? 0 : destairport.longitude
      end
docs: Set planned_depairport/planned_destairport latitude and longitude