What was found
(CAN) WHILE TOWING AIRCRAFT, WITHOUT EXCEEDING THE TURN LIMITS, THE NOSE GEAR TORQUE ARM CONNECTING PIN BROKE. SUBMITTER STATED THAT THE PIN WAS CRACKED FOR SOME TIME. THIS PIN HAS A LIMITED SERVICE LIFE OF 90,000 CYCLES AND IS INSPECTED AT EACH LANDING GEAR OVERHAUL. BROKEN PARTS RETURNED TO EMBRAER FOR ANALYSIS. PART TC: 9,361.