What was found
ON APPROACH, AT 210KIAS FLAPS PLACED TO FLAP 1, FLAP FAIL EICAS MSG, FOLLOWED QRH PROCEDURES FINAL FLAP CONFIGURATION, 0 SLAT 0 FLAP, ORIGINALLY SLATS 3 ONLY AND FLAPS 0. REMOVED AND REPLACED RT IB FLAP OB ACTUATOR IAW MM 27-51-01. OPS CHECK OK.