As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT APPOX 5000 GOT R AFT ENTRY DOOR EICAS MSG. WENT OUT THEN CAME BACK ON FOR ANOTHER 5 SECONDS THEN WENT OUT FOR REMAINDER OF FLIGHT. CORRECTIVE ACTION: INSPECTED AFT RIGHT ENTRY DOOR, CLEANED DEBRIS OFF DOOR LATCHES AND ROLLERS AND PERFORMED OPS TEST, OPS TEST PASS.