As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE LANDING GEAR CONTROL CIRCUIT BREAKER TRIPPED WHEN GEAR DOWN WAS SELECTED. CREW EXTENDED GEAR BY MANUALLY PUMPING GEAR DOWN. REPLACED DIODES FOR THE LANDING GEAR SELECT SOLENOID, MULTIPLE GEAR SWINGS AND OPERATIONAL CHECK FLIGHT WERE BOTH GOOD.