As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BATTERY PACK CAPACITY CHECK FOUND 1EA BATTERY PACK M33094(R1 DR) LESS THAN 15MINS REF TO HAECO NON-ROUTINE NO.9496331, ORIGINATE D BY EMP V905457, SPEC NO.B777-33-3-7019 PERFORMED BY EMP V903218 AND IDT BY EMP V905411 - REPLACED THE M33094(R1 DR) EMERGENCY LIGHT BATTERY PACK AS PER AMM 33-51-06-9 60-802 REV 101. PERFORMED NEW BATTERY PACK TEST, THE RESULT FOUN D NORMAL.