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: DR 5 RIGHT (AFT M33409) EMERGENCY LIGHT BATTERY FAILED OPERATIONAL AND BITE TEST. P/N OFF: D717-01-100 S/N OFF: 433005 REPLACED DOOR 5 RIGHT EMERGENCY LIGHT BATTERY PACK M33409 AND INSTALLATION TEST PASSED AS PER AMM 33-51-06. P/N ON: D717-01-1000 S/N ON: 510312 WORK ACCOMPLISHED BY V943538