As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON LANDING IN RDU IT WAS NOTED THAT THE R2 MAIN TIRE AND WHEEL ASSY WAS MISSING FROM THE AIRCRAFT. THE AXLE NUT WAS ATTACHED TO THE AXLE AND THE BRAKE ASSY WAS IN PLACE. DURING A TIRE CHANGE THE PREVIOUS NIGHT, THE SPACER HAD BEEN OMITTED DURING REINSTALLATION.