What was found
NUMBER 3 ENGINE (RIGHT) FIRE INDICATION. FOLLOWED PROCEDURE. BOTH BOTTLES FIRED WITH LIGHT REMAINING ON. DIVERT TO KBOS. EXTERNAL INSPECTION SHOWED NO EVIDENCE OF FIRE ON THE GROUND, INSPECTED ENG AND NO EVIDENCE OF FIRE. HARD FAULT NUMBER 3 ENG FIRE DETECTOR T/S PER FIM FAULTED FDCU INTERNAL FAULT AND LOOP A FAULT. INSPECTED ALL LOOPS AND HARNESSES NTF RESISTANCE FROM FDCU OKAY, OHMED AT ALL LOOPS RESISTANCE WITHIN LIMITS. REPLACED FDCU OPS NORM, RTS GOOD VERIFIED IN NR 2 SPOT ITEM FOLLOWED REINSTALLED ORIG, ALL NOW TEST NORM.