As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND NOSE GEAR DOOR HANGING OPEN. THE GEAR DOOR TORQUE TUBE WAS BROKEN AT THE ATTACH POINT. FLIGHT WITH THIS CONDITION COULD CAUSE THE NOSE GEAR TO JAM IN THE UP POSITION. SUBMITTER RECOMMENDED FIT BY CESSNA WAS TO C/W SB 560-32-07. THIS BULLETIN DOES NOT APPLY TO THE 501, BUT WILL FIX THIS PROBLEM.