What was found
ORF - FLT 205 - EN ROUTE CLT-BOS, CAPTAIN REPORTED STRONG SMELL OF SMOKE IN CABIN. THE MID LAVATORY SMOKE DETECTOR ACTIVATED. FLIGHT DIVERTED TO ORF AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE CHECKED THE AIRCRAFT OVER, INCLUDING RUNNING BOTH PACKS FROM THE ENGINES AND THE PAU. NO PROBLEMS WERE FOUND. THE RECIRCULATION FAN AND FILTERS WERE REPLACED AS A PRECAUTION. (M)