As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING WHEEL REPLACEMENT A BOLT WAS FOUND TO BE MISSING FROM THE WHEEL. DAMAGE TO THE WHEEL AND BRAKE HAS SHOWN THE BOLT WAS FITTED AT ASSY AND BECAME DETACHED DUE TO A BOLT FAILURE. THE BOLT PARTS WERE NOT RECOVERED AND THE TIME OF FAILURE WAS NOT ESTABLISHED. THE WHEEL HAD DONE 440 CYCLES SINCE THE BOLTS NDT WAS CARRIED OUT.