What was found
(CAN) MULTIPLE MLG TIRES DEFLATED. AFTER LANDING, WHEN ACFT PARKED, FLIGHT CREW OBSERVED THAT, NR 1 MAIN TYRE HAS A DEEP CUT ON SIDE AND 0 PSI PRESSURE. NR 2 MAIN TYRE HAS A LOW PRESSURE. NR 3 MAIN TYRE HAS A DAMAGE AND LOW PRESSURE. NR 4 MAIN TYRE HAS A LOW PRESSURE. NR 1 AND NR 3 MAIN WHEEL AND BRAKE UNITS WERE LOOK LIKE A STUCK. NOT ABLE TO TURN. ACFT WAS TOWED TO HANGAR. AFTER COUPLE OF HOURS, AFTER SOME HEAT APPLIED, NR 1 AND NR 3 BRAKE ASSY STARTED TO TURN BY HAND FORCE. FLIGHT CREW ARE NOT QUITE SURE WHEN DAMAGE OCCURRED. THERE MIGHT HAVE BEEN DAMAGED DURING TAXING/TAKE OFF ROLL.