What was found
NR 4 ENGINE FIRE WARNING ON CLIMB-OUT, MROL SECURED ENGINE IN ACCORDANCE WITH ARROW PROCEDURES "NOTED HIGH OIL TEMPERATURE AFTER SHUTDOWN, OIL PRESSURE 20 PSI IN-CRUISE, 10 PSI ON APPROACH. INSPECTED NR 4 ENGINE; FOUND NR 4 FIRE LOOP CHAFING AGAINST ENGINE COWLING. PROVIDED CLEARANCE, REPOSITIONED FIRE LOOP IN ACCORDANCE WITH M/M 26-2-1 AND M/M 72-00. PERFORMED ENGINE RUN-UP WITH CREW, NO LEAKS OR DEFECTS NOTED IN ACCORDANCE WITH M/M 71-00. ALL INDICATIONS NORMAL.