As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT CREW UNABLE TO EXTEND THE GEAR. THE GEAR WAS MANUALLY PUMPED DOWN. THREE GREEN LANDING LIGHTS INDICATED AFTER MANUAL EXTENSION. WIRE P221C14 DISCOVERED DISCONNECTED FROM CIRCUIT BREAKER CB107. CONNECTED THE WIRE, SUCCESSFULLY OPS-CHECKED WITH 5 NO-FAULT CYCLES.