As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR RETURN DUE TO NOSE DOOR OPEN & NOSE GEAR DISAGREE WARNING MSG. R & R PROX SENSOR HARNESS IAW AMM 32-61-25. SERVICED GEAR IAW AMM 12-12-32. PERFORMED EXTENSION & RETRACTION, CHECKED IAW AMM 32-30-00. ALL CHECKED NORMAL. NO DEFECTS NOTED.