As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOG INFLIGHT - NOSE LANDING GEAR DOOR INDICATION ILLUMINATED ON BOTH GEAR INDICATION PANELS. RETURNED TO BOG AND LANDED WITHOUT INCIDENT. ACCOMPLISHED BITE CHECK OF GROUND PROXIMITY DETECTION UNIT AND FOUND NUMBER TEN SENSOR FAULTED. RESET FAULT AND CLEARED. SYSTEM GROUND CHECKED NORMAL OPERATION.