What was found
MIA - FLT 0063 - EN ROUTE ORY/MIA DURING CRUISE, EMERGENCY EXIT LIGHTS INTERMITTENTLY ILLUMINATED. NO OTHER ABNORMAL INDICATIONS AND AIRCRAFT PROCEEDED TO MIA LANDING WITHOUT INCIDENT. ACCOMPLISHED GROUND CHECK OF EMERGENCY EXIT LIGHTS WITH NO DEFECTS FOUND. UNABLE TO DUPLICATE PROBLEM. SYSTEM GROUND CHECKED, NORMAL OPERATION AND AIRCRAFT RETURNED TO SERVICE. (X)