As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW INFLIGHT T1276/21FEB - ARRIVED DFW WITH RIGHT NOSE TIRE/WHEEL ASSEMBLY MISSING. PASSENGERS DEPLANED VIA PORTABLE STAIRS AND BUSSED TO TERMINAL. REPLACED NOSE GEAR PISTON AXLE ASSEMBLY, TIRES AND WHEELS. SYSTEM GROUND CHECKED NORMAL OPERATION.