As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT THE NOSE GEAR DOOR AMBER LIGHT ILLUMINATED AND THE GREEN SAFE LIGHT WENT OUT AND THE RED UNSAFE ILLUMINATED. NOISE/VIBRATION WAS ALSO REPORTED. MX TRACED THE PROBLEM TO A FAULTY NG PROXIMITY SENSOR. GEAR SWINGS AND ALL OPS TEST PROVED SATISFACTORY.