What was found
FLT 431 - LAX-PVR - CAPTAIN REPORTED DURING CRUIST EHT LIGHT 'SLAT DISAGREE' WAS TURNED ON, AND SOMETIMES THE AURAL ALARM OF 'FLAP OVERSPEED' WAS SOUNDED. AT PVR, THE SYSTEM WAS CHECKED AND THE PROXIMITY SWITCH CONTROL UNIT WAS REPLACED IAW MM 34-60-04, TEST OK. (M)