As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR DIDN'T RETRACT WHEN GEAR HANDLE WAS SELECTED UP. AFTER GEAR HANDLE WAS SELECTED DOWN THE AMBER "NOSE DOOR OPEN R" CAS MESSAGE ILLUMINATED. REMOVED AND REPLACED THE LANDING GEAR HANDLE ASSY. WITH REPAIRED UNIT. OPERATIONAL CHECK NORMAL. WORK PERFORMED IAW THE CE680 M/M 32-30-10.