What was found
WHILE PERFORMING ENGINE FIRE EXTINGUISHER SYSTEM TEST IAW B1900C MM CAMP NR 2 INSPECTION TEMP REVISION, FOUND NR 2 ENGINE SQUIB POWER SWITCH DISCONNECTED FROM ANNUNCIATOR/ ACTUATOR ASSEMBLY DESIGN BE CHANGED FOR POSITIVE ATTACHMENT OF THE SQUIB SWITCH. FAILURE OF THE SQUIB SWITCH. FAILURE OF THE SQUIB SWITCH ATTACHMENT DISABLES THE FIRE EXTINGUISHER SYSTEM AND COULD CAUSE LOSS OF LIFE IN THE EVENT OF A FIRE. THERE IS NO WAY FOR THE FLIGHT CREW TO GROUND TEST THIS SYSTEM FOR THIS TYPE OF FAILURE.