As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTING BATTERY PACK CAPACITY FUNCTIONAL CHECK FOUND DR 2L M33096 EMERGENCY LIGHT BATTERY PACK LOW CAPACITY - ORIGINA TED BY EMP V905400 ON HAECO NR 9475112, SPEC NO.B777-33-3-7030. PERFORMED BY EMP V924363, REPLACED DR 2L M33096 EMERGENCY LIGHT BATTERY PACK, AND PERFORMED THE LIGHT TEST, THE RESULT FOUND NOR MAL, REF AMM 33-51-06-960-802 REV 94.