Aircraft status is manually set by our data research team vs tracked utilisation that is automatically updated. It’s possible that an aircraft has not been tracked for a period but has not yet had its status updated (to Storage) by the data research team.
The ADS-B transponder is not operating for some reason. This is highly unlikely for commercial aircraft.
We’ve not linked the aircraft’s hex code (transmitted via the ADS-B transponder) to an aircraft’s registration, i.e. we have been unable to identify the exact aircraft being tracked.