As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT DURING FLIGHT THERE WAS A LOUD THUMPING NOISE FOLLOWED BY A RUSHING AIR SOUND AND VIBRATION UNDER THE COCKPIT FLOOR BOARDS. THERE WERE NO GEAR INDICATIONS. THE AIRCRAFT LANDED WITHOUT INCIDENT AND WAS MET BY MAINTENANCE PERSONNEL. MAINTENANCE REPLACED THE NOSE LANDING GEAR DOOR SOLENOID VALVE. GEAR SWINGS AND OPERATIONAL CHECKS OF THE NOSE LANDING GEAR DOORS WERE GOOD, WITH NO FURTHER DEFECTS NOTED.