What was found
NR 2 FIRE WARNING SYSTEM CAME ON IN FLIGHT, ALL ENGINE INDICATIONS WERE NORMAL. THE PILOT CONTINUED THE FLIGHT AND MONITORED ENGINE, AND ENGINE INDICATORS. FLIGHT CONDITIONS WERE IN WET SNOW. MOISTURE CONTAMINATION OF ELECTRICAL CONNECTOR TO NR 2 ENGINE LOWER SENSOR CAUSED A FALSE FIRE WARNING. CLEANED AND DRIED CONNECTOR, REMOVED, AND REPLACED NR 2 LOWER FIRE LOOP. (M)