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 AFTER TAKE OFF. CORRECTIVE ACTION: TROUBLESHOT LANDING GEAR SYSTEM. FOUND THE NOSE GEAR SQAUT SWITCH NOT MAKING CONTACT WITH TARGET. SERVICED NOSE LANDING GEAR STRUT AS PER MAINTENANCE MANUAL. LANDING GEAR RETRACTION CHECKS CARRIED OUT AND FOUND SATISFACTORY. NO OTHER DEFECTS NOTED.