What was found
WHILE BEGINNING APPROACH, EXTENDING SLAT/FLAP LEVER FROM 0 TO 1 RESULTED IN SLAT FAIL EICAS MESSAGE. PERFORMED QRH. SLATS REMAINED FAILED. DECLARED AN EMERGENCY, LANDED WITHOUT INCIDENT. MAINTENANCE CLEARED INHIBITS AND RELEASED THE SLAT BRAKE. SI 278061 WAS ISSUED AND COMPLIED WITH ON 2/10/10, WITH THE 3R SLAT ACTUATOR FOUND TRIPPED, WHICH WAS REPLACED.