As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DEPARTURE CLIMB UPON PLACING GEAR HANDLE IN 'OFF' POSITION, RIGHT MAIN LANDING GEAR DOOR WARNING INDICATION ILLUMINATED. RECYCLED GEAR HANDLE TO 'UP' AND THEN 'OFF' POSITION TO NO AVAIL. RECYCLED LANDING GEAR WITH PROPER INDICATIONS. MAINTENANCE COULD NOT DUPLICATE MALFUNCTION.