What was found
EN ROUTE BETWEEN DLH AND JAX, THE NR 1 ENGINE WAS SHUT DOWN DUE TO AN OVERHEAT WARNING. BOTH ENGINE FIRE EXTINGUISHER CYLINDERS WERE DISCHARGED. AIRCRAFT DIVERTED TO SAV AND LANDED WITHOUT INCIDENT. UPON INSPECTION, THE NR 1 ENGINE LOWER OVERHEAT SENSING ELEMENT WAS FOUND TO BE IN CONTACT WITH THE LOOP PROTECTIVE ENCLOSURE CAUSING A SHORT CIRCUIT IN THE SYSTEM. THE CONDITION WAS RECTIFIED, BOTH ENGINE EXTINGUISHERS WERE REPLACED. ALL SYSTEM TESTS PER BMM 26-11-0 AND 26-11-11 WERE ACCOMPLISHED SATISFACTORILY. THE AIRPLANE RETURNED TO SERVICE.