What was found
(CAN) DURING TAXI FOR DEPARTURE THE ANTI-SKID CAUTION LIGHT CAME ON. THE CREW ELECTED TO RETURN TO THE GATE. DURING THE RETURN TAXI THE NR 2 MAIN WHEEL SEIZED & THE ACFT COULD TAXI NO FURTHER. THE PAXS WERE OFFLOADED ON THE TAXIWAY INTO BUSSES & BUSSED BACK TO THE TERMINAL. REMOVED THE NR 2 MAIN WHEEL ON THE TAXIWAY & THE ACFT WAS TOWED TO THE HANGAR. INSPECTION HAS FOUND THAT THE NR 2 MAIN WHEEL HUB FRACTURED ALLOWING THE WHEEL TO BECOME LOOSE ON THE AXLE. THERE IS CONSEQUENT DAMAGE TO LG AXLE & EXTENSIVE DAMAGE TO THE BRAKE UNIT & WHEEL HUB. THE WHEEL BEARINGS APPEAR TO BE INTACT. THE LG AXLE WAS REPLACED ALONG WITH BOTH BRAKE UNITS & BOTH WHEELS. NR 2 MAIN WHEEL ASSEMBLY PN 3-1573-1, SN 0114. WHEEL STATS TSN 2255, CSN 1759, TSR475, CSR 465, TS DETAILED INSP 1171, CS DETAILED INSP 916. DETAILED INSPECTION SCHEDULED EVERY 1050 CYCLES. ACFT TSN 9225, CSN 7196.