What was found
INSPECTION TYPE-NA, DURING DESCENT FROM 250 TO 240 NR 1 ENG STRUT OVERHEAT LIGHT ILLUMINATED WITH THROTTLE APPROX ONE-THIRD FORWARD. STRUT OVERHEAT CHEKLIST ACCOMPLISHED, LIGHT REMAINED ILLUMINATED AND NR 1 ENG SHUT DOWN. REMOVED AND REPLACED FIRE DETECTOR CONTROL BOX PER MM 26-14-00 AND PERFORMED OPS, CK GOOD. TIGHTENED ALL CONNECTORS, NO FURTHER FAULT FOUND.