What was found
SEVERAL EMERGENCY LIGHTS IN THE CABIN COMPARTMENT ARE INOPERATIVE OR DIE IN LESS THAN 30 SECONDS AT TAXI. MAINTENANCE REPLACED THE EMERGENCY LIGHT BATTERY PACK REF B717 AMM 33-51. BATTERY PACK LOCATIONS REPLACED ARE B5-116, -227, -120, -230, AND -231. OPERATIONAL CHECK WAS GOOD AND THE AIRCRAFT RETURNED TO SERVICE. (LP #4783266)