What was found
DURING INITIAL DESCENT, RECEIVED AN INTERMITTENT LEVEL 1 FIRE DETECTOR FAILURE, THEN RECEIVED A LEVEL 3 ENGINE FIRE INDICATION. EMERGENCY DECLARED SHUTDOWN ENGINE NR 3. REPAIRED THE TERMINAL AT UPPER LT LOOP A, DH4A AND DH4C IAW SWPM 20-30-11. REPLACED HARNESS BETWEEN LOOP B, UPPER LT AND RT AND UPPER RT TO LOWER IAW MM 20-30-01. OPS CHECKED GOOD IAW MM 26-11-02-700-801.