As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LGA - FLT 528 - PILOT REPORTED PRIOR TO DEPARTURE, THE FORWARD ENTRY AND FORWARD SERVICE DOOR EMERGENCY LIGHTS WOULD NOT ILLUMINATE. MAINTENANCE REMOVED AND REPLACED THE BATTERY PACK AND CHARGER ASSEMBLY. OPERATIONAL CHECK GOOD. BATTERY PACK, P/N 2013-1ALP. CHARGER ASSY, P/N 2012-1. REF: OPERATOR CNTRL NR USAASB99156.