What was found
FLT 3521 - RIC - DURING DESCENT INTO PIT RECEIVED A FLAP FAIL MESSAGE ON THE EICAS. MAINTENANCE INSPECTED THE FLAP TRACKS, REMOVED, REPLACED AND OPS CHECKED THE FECU FOR TROUBLESHOOTING, SERVICED THE SCREW JACK ACTUATORS, CORRECTED THE LEFT FLAP RIGGING AND PERFORMED OPERATIONAL CHECK OF THE FLAP BRAKE.