What was found
(CAN) SLAT FAIL ON APPROACH GO AROUND TO RECONFIGURE ,CREW REQUESTED EMERGENCY VEHICLES TO MEET ON LANDING. LANDED WITHOUT INCIDENT. RESOLUTION FOUND LTH SLAT NR 4 ACTUATOR AT FAULT , ACTUATOR REPLACED AS PER AMM 27-81-01-400 , SLAT MECHANICAL RIGGING C/OUT PER 27-80-00-820-801 AND ELECTRICAL RIGGING C/OUT PER 27-80-00-820-802 , OPS CHECK C/OUT PER 27-80-00-710-801 , SERVICEABLE .