As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY EXIT LIGHTING ABOVE DOOR 1-L AND LEFT SIDE OF FIRST CLASS STAY ON WITH POWER OFF & ALL EMERGENCY LIGHT SWITCHES OFF. REPLACED POWER SUPPLY AND BATTERY PACK REFERANCE MM 33-51-07-022-020 AND 33-51-07-902-001 OPS CHECKED NORMAL.PARTS USED: 19-3351-3-0097,QTY :1 75-3351-3-0041,QTY :1