As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OFAR BATTERY PACK M33119 CAPACITY CHECK FAIL - ORIGINATED BY EMP V903215 ON HAECO NR 9491156, SPEC NO.B777-33-3-7007. PERFORMED BY EMP V905380, REPLACED OFAR BATTERY PACK M33119 AND CARRIED OUT OPERATIONAL TEST FOUND ''NORMAL'', AS PER AMM 33-51-15 -800-801 REV 95.