As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
B777-33-3-7019 B2 INT: DOOR 5 RIGHT (FWD M33408) EMERGENCY LIGHT BATTERY FAILED OPERATIONAL AND BITE TEST. P/N OFF: D717-01-100 S/N OFF: 432865 REPLACED DOOR 5 RIGHT EMERGENCY LIGHT BATTERY PACK M33408 AND INSTALLATION TEST PASSED AS PER AMM 33-51-06. P/N ON: D717-01-100 S/N ON: 513120 WORK ACCOMPLISHED BY V943538