What was found
DURING DESCENT INTO MEM, FIRE WARNING BELL CAME ON 3 TIMES. DURATION WAS 2-3 SECONDS, DURING THIRD INCIDENT NR 1 FIRE LIGHT ILLUMINATED BRIEFLY. LIGHT TESTED GOOD DURING TEST. REMOVED AND REPLACED ENGINE FIRE DETECTION CONTROLLER, PER MM 26-11-000-4, OPS CHECK GOOD, OK FOR SERVICE.