As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROUTINE MAINTENANCE CHECK, FOUND EMERGENCY LIGHTS OUT AT ROW 17. REMOVED AND REPLACED BATTERY ASSEMBLY. REMOVED AND REPLACED OPEN FUSE IN EMERGENCY BATTERY CHARGER ASSEMBLY. REPAIRED SHORTED WIRES UNDER SEAT AT ROW 21, LIGHTS CHECK GOOD.