As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR SELECTED SWITCH WAS PLACED IN THE DOWN POSITION, THE GEAR FAILED TO COME DOWN IN FLIGHT. A GEAR UP LANDING WAS MADE. INSPECTION OF THE LANDING GEAR SYSTEM AFTER THE ACCIDENT CHECKED NORMAL. INSPECTION OF THE DYNAMIC RELAY SHOWED ARCING ON THE CONTACTS.