As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY ESCAPE PATH LIGHTS WERE FOUND TO BE INOPERATIVE IN FIRST CLASS AND THE FWD GALLEY DURING AN OVERNIGHT LINE CHECK. MX FOUND BATTERY PACK M00730 TO BE AT FAULT AND REPLACED IT. SYS OPERATION WAS NORMAL AFTER THE BATTERY PACK WAS REPLACED. (K)