As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE GEAR DOOR WARNING ILLUMINATED IN FLIGHT AT 20,000 FT. DISENGAGE CAME ON BREIFLY ONCE AGAIN WITH GEAR DOWN THEN EXTINGUISHED. REMAINDED OFF. FOUND THE PROXIMITY SENSOR TO BE OUT OF LIMITS AT 0.60 INCHES. ADJUSTED THE SENSOR IAW AMM 32-61-05. SENSOR CHECKED GOOD, DOOR FUNCTIONS NORMAL. ACFT OK FOR SERVICE.