As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DOOR FLIGHT LOCK 4R EICAS STATUS NR 4 RIGHT PASSENGER ENTRY DOOR FLIGHT LOCK COMMAND, FLT LOCK RELAY, SENSOR DISAGREEMENT. CLEANED DOOR SWITCH NO HELP, DOOR 4R OPEN AND CLOSE NORMAL, REQUESTING MEL OK TO DEFER DOOR 4R FLIGHT LOCK INOP COMPLIED WITH MEL. CHRONIC LVL 1. REPLACED THE FLIGHT LOCK ACTUATOR AMM 52-11-26.