As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 310 - EN ROUTE BWI TO CLT - IN FLIGHT, THE MID LAVATORY SMOKE DETECTOR BEGAN ALARMING. CREW NOTICED AN OIL ODOR IN FLIGHT. FLIGHT CONTINUED TO CLT AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE PLACED THE LEFT PACK ON MEL. PERFORMED A SATISFACTORY PACK TEMPERATURE CONTROLLER BITE CHECK. NO FAULTS WERE FOUND. OPERATIONALLY CHECKED THE LEFT PACK WITH THE ENGINES RUNNING. NO ODORS WERE DETECTED AND THE FLOW/COOLING WAS NORMAL. REMOVED THE MEL. OK FOR SERVICE.