What was found
BWI - FLT 1795 - FLIGHT EN ROUTE, WHEN FWD AMBER LEADING EDGE FLAPS TRANSIT LIGHT ILLUMINATED. THE NR 5 SLAT FULL EXTEND LIGHT ALSO ON. FLIGHT DIVERTED TO BWI WHERE LANDING WAS WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED NR 5 LEADING EDGE SLAT PROXIMITY SWITCH, S178. ALL INDICATIONS CHECK NORMAL. (W)