As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
{B777-33-3-7019} EMERGENCY LIGHTING BATTERY PACK (M33409) FOUND CAPACITY CHECK FAIL. TRANSFER REF.NON-ROUTINE HX NRC WO.3022355 AND ORIGINATED BY EMP EMERGENCY LIGHTING BATTERY PACK (M33409) REPLACED AND INSTALLATION TEST CARRIED OUT RESULT WITH NORMAL AS PER AMM 33-51-06. WORK ACCOMPLISHED BY MECHANIC INSPECTED BY IDT INSPECTED OKAY BY HX147282.