What was found
ORD - FLT 4152 - CREW REPORTED EMERGENCY EXIT SIGN INOPERATIVE. MAINTENANCE REMOVED AND REPLACED BATTERY PACK. OPERATIONAL CHECK GOOD, AIRCRAFT RETURNED TO SERVICE. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ORD - FLT 4152 - CREW REPORTED EMERGENCY EXIT SIGN INOPERATIVE. MAINTENANCE REMOVED AND REPLACED BATTERY PACK. OPERATIONAL CHECK GOOD, AIRCRAFT RETURNED TO SERVICE. (X)