As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDING GEAR WOULD NOT RETRACT WITH GEAR HANDLE SELECTED TO UP POSITION. 3 GREEN ANNUNCIATORS REMAINED ILLUMINATED. DIVERTED BACK TO KMCO. MAINTENANCE REPLACED THE LANDING GEAR HANDLE CONTROL ASSEMBLY. GEAR SWINGS PERFORMED WITH NO DEFECTS NOTED. A SUCCESSFUL OPERATIONAL CHECK FLIGHT WAS PERFORMED. AIRCRAFT WAS RETURNED TO SERVICE.