As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHT BATTERY PACKS CAPACITY CHECK FOUND L2 M33099 EMERGENCY LIGHT BATTERY POOR CAPACITY,REFER HAECO NON-ROUTINE LP :9466604,ORIGINATED BY EMP:V905449,SPEC NO.B777-33-3-7019. PERFORMED BY EMP:V905449,REPLACED THE DR2L M33099 EMER LIGHT BATTERY AND PERFORM EMER LIGHT SYSTEM CAPACITY TEST FOUND NORMAL REF AMM 33-51-06-960-802 REV.93 & AMM 33-51-00-710-803 REV.93. IDT BY TA393 ADD EMP:V903668