As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTING SYSTEM OPERATIONAL CHECK, FOUND SEAT ROW 8ABC TO 14ABC FLOOR PROXIMITY LIGHT INOPS. FOUND BAD POWER SUPPLY M02503. NEED POWER SUPPLY AND BATTERY.. REPLACED BATTERY CHARGER AND BATTERY PACK AT M02503, PER AMM 33-51-06-960-805, OPS OK.