As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED THAT WHEN THE LANDING GEAR DOWN WAS SELECTED THE LANDING GEAR CIRCUIT BREAKER POPPED. THE BREAKER WAS RESET AND A MANUAL LANDING GEAR EXTENSION WAS PERFORMED. THE AIRCRAFT LANDED SAFELY WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THAT CONNECTOR J206, PINS A AND B WERE SHORTED TOGETHER. THE WIRING WAS CORRECTED AND THE AIRCRAFT RETURNED TO SERVICE.