As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE GEAR FLUTTER IN FLIGHT. FLICKERING NOSE GEAR DOOR LIGHTS, BOTH CAUTION AMBER ON S/O PANEL AND RED NOSE GEAR LIGHTS ON AT 370 KNOTS IN DESCENT. LIGHT OUT FLUTTER STOPS AT 340 KNOTS. GEAR HANDLE POSITION OFF. *S/D* ADJUSTED FWD NOSE GEAR DOOR AFT STOPS AND ADJUSTED DOOR MECHANISM CABLES. RETRACTION CHECKED NORMAL.