What was found
PILOT REPORTED LOSS OF GREEN LIGHT AND TRANSIT LIGHT ON THE NOSE GEAR DURING TAXI INTO AIRPORT. PILOT SHUTDOWN AC AND EMPTIED AIRCRAFT. MAINTENANCE MOVED AIRCRAFT TO SAFE LOCATION AND WHILE JACKING THE AIRCRAFT NOTICED THAT NOSE WHEEL PIVOTED SIDEWAYS. UPON INVESTIGATION IT WAS NOTED THAT THE UPPER GEAR TRUNNION PIN RETAINING BOLTS WERE SHEARED AND MISSING. THEY WERE STILL IN PLACE YET THE HEADS WERE SHEARED OFF. REMOVED AND INSPECTED THE LOWER PIN RETAINING BOLTS AND FOUND THEM CORRODED AND READY TO SHEAR. ALL UNSERVICEABLE BOLTS REPLACED AND GEAR SWINGS CHECKED SERVICEABLE AND AIRCRAFT RETURNED TO SERVICE.