flight shows as cancelled but wasn't - second time

this is the data:

inizio check 13/02/2017 09.56.05
link:http://flightxml.flightaware.com/json/FlightXML2/AirlineFlightSchedules?startDate=1486973700&endDate=1486981500&origin=FCO&destination=DUS&airline=AZ&flightno=420&howMany=10&offset=0
risultato: {“AirlineFlightSchedulesResult”:{“next_offset”:-1,“data”:{“ident”:“AZA420”,“actual_ident”:“CAT420”,“departuretime”:1486973700,“arrivaltime”:1486981500,“origin”:“LIRF”,“destination”:“EDDL”,“aircrafttype”:“E170”,“meal_service”:“Turistica: Colazione continentale”,“seats_cabin_first”:0,“seats_cabin_business”:0,“seats_cabin_coach”:88}]}}

link flightxml.flightaware.com/json/F … 1486973700
Risultato: {“GetFlightIDResult”:“CAT420-1486800900-schedule-0002”}

link flightxml.flightaware.com/json/F … edule-0002
Risultato: {“FlightInfoExResult”:{“next_offset”:-1,“flights”:{“faFlightID”:“CAT420-1486800900-schedule-0002”,“ident”:“CAT420”,“aircrafttype”:“E170”,“filed_ete”:“01:50:00”,“filed_time”:1486800900,“filed_departuretime”:1486973700,“filed_airspeed_kts”:283,“filed_airspeed_mach”:“”,“filed_altitude”:0,“route”:“”,“actualdeparturetime”:-1,“estimatedarrivaltime”:-1,“actualarrivaltime”:-1,“diverted”:“”,“origin”:“LIRF”,“destination”:“EDDL”,“originName”:“Roma-Fiumicino”,“originCity”:“Rome”,“destinationName”:“internazionale di Düsseldorf”,“destinationCity”:“Dusseldorf”}]}}

but when I check on flightaware.com/live/flight/CAT420

it shows the flight as landed.

I use this data for our business, so while I understand that now and then there could be errors, this kind of behavior is difficult to understand :open_mouth: ! What is going on and how could I help to solve this problem?

ciao from Italy, M :unamused:

Flight data outside of our primary coverage areas is always going to be lower quality than those in our primary coverage areas. We welcome feedback on specific issues you find and that can help us to improve our tracking and find additional sources for data. However, flight tracking data sources are inherently very noisy and imperfect and the quality of flight tracking will be dependent upon the nature of the data we are receiving.