Worth thinking about sourcing these from the PP-logs-and-routes database.
Yes, I have been using your excellent little routine to extract routes from the database that is regularly published in that Yahoo group.
Whether I am doing something wrong, I am not sure, but when I import the new routes into the AirNav database I seem to corrupt the aircraft part. I end up with lots of "..." where they never were before. For that reason I am not too keen to keep updating from the PP-logs database.