As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REFER NR L/P 9469436 - SPEC NO. B777-33-3-7025 - DURING LLAR EME R LT CAPACITY TEST FOUND LLAR ELECTRONIC COMPARTMENT BATTERY M02 3 LOW VOL VOLTAGE LLAR ELECTRONIC COMPARTMENT DWG PACK M023 REPLACED, NEW BATTERY TEST CARRIED OUT FOUND NORMAL, REF AMM 33-51-06-960-802 REV.84 ADD EMP:V903182 IDT BY TA646 ADD EMP:V905511