As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THAT THEY SUSPECTED THAT THE NLG DOORS OPENED DURING DESCENT AT ABOUT 300KTS WITH A MODERATE VIBRATION FELT NEAR NOSE OF PLANE. THE LANDING GEAR INDICATIONS WERE NORMAL AND THE GEAR EXTENDED NORMALLY. THE ACFT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE ACFT AND APPROVED A FERRY FLIGHT. MAINTENANCE R & R THE LGEU AND NLG DOOR SOLENOID VALVE, OPS TESTED WITH NO DEFECTS, AND THE ACFT WAS APPROVED FOR RETURN TO SERVICE.