As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR HANDLE COULD NOT BE SELECTED TO THE UP POSITION AFTER PROGRESSIVE INSPECTION WAS PERFORMED ON AIRCRAFT BY MAINTENANCE. BELIEVE THAT HANDLE HAS A SHORT INTERNALLY CAUSED BY THE SHORTING OUT THE HYDRAULIC CONTROL RELAY AND THE RELAY AND DIODES BOARD.