As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5076 - DURING APPROACH MAIN GEAR WOULD NOT DEPLOY, GEAR DISAGREE MESSAGE, NOSE DID NOT DEPLOY. DECLARED EMERGENCY, RAN QRH, MANUALLY DEPLOYED GEAR, FOR NORMAL LANDING WITH 3 GREEN. NOSE DOOR WARNING REMAINED ON. REPLACED MLG SELECTOR VALVE.