Flight still showing after pilot deleted

We have deleted a pilot, including the ACARS_data from the database.  The flight still shows up on the map with a PID of 0000.  How can this be deleted?

http://prs.flyafava.com/

 

thanks

Can you try clearing your cache (just incase) and because of the acars map refreshing, can you check if the entry is re-populated into the acars_data table in your database. It seems it is re-registering as the response here http://prs.flyafava.com/action.php/acars/data