IfUniqueFlightLegIdis included it is used as the only identification element. It must have been received previously by data from the airport system responsible for allocating it, typically an AODB.
DiversionAirportICAO is the airport the flight diverted from. A value here means that the aircraft has been diverted. ArrivalAirportICAO further up is the new destination for this flight leg.
1 Comment
Ole Nymoen
Andrius Radzevicius , Morten Banzon , Egil Johnsen
The table above has been updated with what can be NILed.