As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, GEAR MOTOR WAS SLOW TO EXTEND LANDING GEAR. FURTHER INVESTIGATION DETERMINED THAT EXTENSION VALVE HAD A RESTRICTION IN THE LINE WHICH CAUSED THE LANDING GEAR MOTOR TO REQUIRE MORE CURRENT BECAUSE OF THIS DEMAND IT CAUSED THE LANDING GEAR RELAY TO SHORT WHICH ALOUD THE CURRENT TO SPIKE THE RELAY AND DIODE BOARD AND SHORT IT OUT. RECOMMENDATION IS TO INSTALL A CIRCUIT PROTECTION DEVICE IN LINE BEFORE THE RELAY AND DIODE BOARD.