As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L/H UPPER DECK DOORWAY EMERGENCY LIGHTING BATTERY PACK FOUND ON THE FLOOR AFTER LANDING. REINSTALLED BATTERY PACK AS REQUIRED - BATTERY PACK INOPERATIVE. PLACED ON DEFERRAL PER B747 MEL 52-23-02-01. ON 01/25/2023, BATTERY PACKS FOR LEFT AND RIGHT DOORS SWAPPED WITH BOTH SYSTEMS WORKING NORMALLY. DMI CLOSED.