What was found
PDX - ON FLIGHT NUMBER 2149, DURING TAKEOFF ROLL, THE AUTOFEATHER FAILED TO ARM. THE TORQUE WAS AT 95 PERCENT. THE AIRSPEED WAS AT 70 KIAS. AUTOFEATHER SELECT HAD ILLUMINATED AND AUTOFEATHER TEST NORMAL. CLEANED, INSPECTED AND SECURED CANNON PLUGS ON 1 & 2 ENGINE TORQUE SIGNAL CONDITIONER. NO DEFECTS WERE NOTED. INSPECTED AND CLEANED POWER AND CONDITIONER LEVER PEDESTAL SWITCHES. THERE WERE NO DEFECTS NOTED. GROUND RAN AIRCRAFT AND ALL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.