As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK(M33303) AT THE DOOR 3L FOUND LOW CAPACITY. REPLACED THE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK(M33303) AT THE DOOR 3L AND CARRIED OUT TEST THE RESULT WAS NORMAL REF AMM 33-51-06-960-802 REV 106.