As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXCESSIVE VIBRATION WAS COMING FROM THE NOSE LANDING GEAR AREA AFTER GEAR WAS RETRACTED. FLIGHT RETURNED TO MSO AND LANDED WITHOUT INCIDENT. UPON INSPECTION, FOUND NOSE GEAR DOOR STOP CABLE BROKEN. REMOVED BROKEN CABLE; CLOSED AND SECURED NOSE GEAR DOORS. DEFERRED REPAIR PER MEL 32-7. AIRCRAFT RETURNED TO SERVICE.