As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, RECEIVED A E & E BAY DOOR EICAS MSG & DECIDED TO RETURN. NO EMER WAS DECLARED & RETURNED & LANDED SAFELY WITH NO FURTHER INCIDENT. PREVIOUS DMI 999-15-0090 WAS RE-OPENED MEL 52-71-01-01, E & E DOOR MUST BE VERIFIED CLOSED & LATCHED PRIOR TO EACH FLIGHT. DOOR STRIKER CANNOT BE RIGGED & ADJUSTED OUT ENOUGH TO MEET PROXIMITY SWITCH. DOOR ASSEMBLY & SWITCH ORDERED.