As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
B777-33-3-2019 DR L3 EMER LT PWR PACK BATTERY M33400 CAPACITY CH ECK FAILED TRANSFER REF HX NON-ROUTINE WO.694930 AND ORIGINATED BY V920592 DOOR L3 EMER LT POWER PACK BATTERY M33400 REPLACED AND INSTALLATION TEST CARRIED OUT NORMAL IAW AMM 33-51-06 WORK ACCOMPLISHED BY MECHANIC V920592 INSPECTED BY V907050 INSPECTED BY HX161779, APPROVED.