As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ALL LANDING GEAR RETRACTION DID NOT RETRACT - AFTER TAKE OFF WE TRIED TO RETRACT THE GEAR. THE HANDLE POSITIONED UP BUT LANDING GEAR STAYED IN THE LOCKED DOWN POSITION. WE HAD NO CAS MESSAGES OR ANY OTHER INDICATION OTHER THAN 3 GREEN AND DOWN.