As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH THE NOSE LANDING GEAR WOULD NOT EXTEND. AIRCRAFT LANDED WITH NOSE GEAR RETRACTED. NO INJURIES. INSPECTION FOUND THE NOSE GEAR DOOR RETURN SPRING TO BE BROKEN, WHICH CAUSED THE NOSE GEAR DOOR RETRACT BELLCRANK TO BECOME OUT POSITION JAMMING THE NOSE GEAR DOORS CLOSED AND UNABLE TO EXTEND.