As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THE NOSE GEAR MADE AN UNUSUAL NOISE AT GEAR RETRACTION ON TAKEOFF FROM CLT. AIRCRAFT RETURNED TO CLT AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT THE AIRCRAFT USING THE AIRCRAFT MAINTENANCE MANUAL AND FOUND THE NOSE LANDING GEAR (NLG) DOORS VIBRATING OPEN AND CLOSED WHEN THE NLG WAS RETRACTED. MAINTENANCE REMOVED AND REPLACED THE NOSE NLG SOLENOID SELECTOR VALVE AND PERFORMED CHECKS USING THE AIRCRAFT MAINTENANCE MANUAL. NO FURTHER DEFECTS WERE NOTED. AIRCRAFT WAS RELEASED FOR SERVICE.