What was found
ON FLIGHT 3245 THE CREW REPORTED THE EMERGENCY LIGHT DID NOT ILLUMINATE WHEN TURNED ON. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED NR 1, 2, 3 & 4 EMERGENCY LIGHTS BATTERY PACK IAW EMB 140 AMM 33-50-04. SERIAL NUMBERS: #1 104904, #2 104956, #3 112034, & #4 109951. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.