What was found
NR 3 ENGINE FIRE LOOP. DUE TO CHRONIC NR 3 ENGINE FIRE LOOP FAULTS, PERFORM THE FOLLOWING TROUBLESHOT TASKS FOR THE 'B' LOOP. THE PREVIOUS REPAIR ON 6-18 FIXED THE FAULTS FOR THE 'A' LOOP, BUT THE 'B' LOOP FAULTS WITH MSG 26025 CONTINUE 1. FIM 26-11 TASK 856 STEPS B1-B6 FOR THE NR 3 ENGINE. NO ACTIVE MESSAGE NOTED. LOOP RESISTANCE CHECKS GOOD. INSPECTED HARNESS AND REPLACED WORN CLAMPS. NO OTHER DEFECTS NOTED. RANG SYSTEM AND SHOOK HARNESS. COULD NOT DUPLICATE FAULT.