As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER GEAR WERE RETRACTED A VIBRATION IN THE NOSE OF THE AIRCRAFT WAS NOTICED. THE AIRCRAFT RETURNED TO BASE WITH NO INCIDENT. AN INSPECTION WAS CONDUCTED AND THE NOSE GEAR DOOR TORQUE TUBE ATTACH BOLT WAS FOUND BROKEN. THIS BOLT ATTACHES THE TORQUE TUBE TO THE WHEEL WELL STRUCTURE AND THE TORQUE TUBE ROTATES AROUND THIS BOLT. THE TORQUE TUBE WAS INSPECTED AND REINSTALLED. (TC NR 20070215007)