As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF AND UPON GEAR RETRACTION A FLUTTER NOISE CAME FROM THE NOSE GEAR AREA. FOUND RIGHT NOSE GEAR DOOR OPEN. VISUALLY INSPECTED NOSE GEAR DOORS AND WHEEL WELL. FOUND NOTHING ABNORMAL. CLOSED GEAR DOOR. OK FOR SERVICE PER MM 52-80.