As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
B777-33-3-7019-DOOR 3L EMERGENCY LIGHT POWER SUPPLY M33405 BATTERY PACK CAPACITY CHECK FAIL.REF NR LP 9130328 DR 3L EMERGENCY LT POWER SUPPLY M33405 BATTERY PACK REPLACED AND TESTED NORMAL, AS PER AMM 33-51-06 ADD EMP:V898181 IDT BY HX147282 APPROVED.