As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOS - EN ROUTE PHL/MUC, CREW RECEIVED AN E/E ACCESS DOOR WARNING. ALTHOUGH NO PRESSURIZATION PROBLEMS EXISTED, THE CREW DECIDED TO DIVERT. FLIGHT DIVERTED TO BOS AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE SHIMMED THE E/E DOOR PROXIMITY SENSOR. (X)