As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, A LEFT AFT ENTRY DOOR EICAS MESSAGE OCCURED. FLIGHT ATTENTED SAID HANDLE HAD POPPED UP. ACFT REMAINED PRESSURIZED AT ALL TIMES. F/A PUSHED HANDLE BACK DOWN AND THE EICAS MESSAGE WENT AWAY. DURING THE REST OF THE FLIGHT THE HANDLE HAS POPPED UP A FEW MORE TIMES. ALSO THE SLIDE LIGHT ILLUMINATES PERIODICALLY