As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 9423 - GEAR DISAGREE ON APPROACH AFTER 45 MINUTES AT 30,000 FT, APPROX 10 SECONDS AFTER SELECTING GEAR DOWN, CLEARED ON ITS OWN. CYCLED 5 MORE TIMES, COULD NOT DUPLICATE. A/C LANDED SAFELY. RE-RIGGED RIGHT NLG DOOR UP PROX SENSOR.