As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED A SERIES OF PROXI FAIL MESSAGES. AFTER FOLLOWING THE QRH AND CHECKING THE CIRCUIT BREAKERS, THE CREW SELECTED THE GEAR HANDLE DOWN AND RECEIVED NO RESPONSE FROM THE GEAR. THE CREW DECLARED AN EMERGENCY, HAND PUMPED THE GEAR DOWN AND LANDED WITHOUT INCIDENT.