As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY EXIT LIGHTING SYSTEM OPERATIONAL CHECK {B777-33-3-7031} - DOOR 3 AFT EMERGENCY EXIT SIGN INOP NEED MORE GROUND TIME TO WORK THE PROBLEM MEL 3351A REJECTING UPDATE PART INFO. RELAMPED NO HELP, NEED FURTHER T/S. REMOVED AND REPLACED POWER SUPPLY M33405 ABOVE DOOR 3L PER AMM 33-51-06-960-803, OPS CHECK OK PER AMM 33-51-00-710-801.