As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR DISAGREE WARNING MESSAGE UPON GEAR EXTENSION. FLAPS WERE SELECTED 30. GRINDING NOISES HEARD BEFORE GEAR SHOWED DOWN AND LOCKED, AIRCRAFT WAS IN ICING CONDITIONS DURING EXTENSION, 3A PUMP SELECTED ON, ALL OTHERS WERE IN AUTO, EMERGENCY WAS DECLARED. ALL 3 GEAR SHOWED DOWN AND LOCKED AFTER APPROXIMATELY 10-15 SECONDS. REMOVED AND REPLACED NLG SELECTOR VALVE IAW AMM 32-33-10 OPS AND LEAK CHECK GOOD AT THIS TIME.