Chris, A50077 and 758140 (RP-C8391 for AirPhil Express delivered yesterday evening) were both on the DB. I to had problems getting full details for N421MP when it appeared on the network, so I deleted and re-inserted the record on the DB to see if that sorts it out.
461B08 is a Finnair A333 OO-LTO with one bad transponder box. It also uses its real code of 461F08.
Regards ACW367