What was found
RUNWAY AS INSTRUCTED. THE ACFT STOPPED. WHEN APPLIED POWER THE ACFT WAS PULLING TO ONE SIDE. THE CREW REALIZED THERE WAS A FLAT TIRE. MAINTENANCE REPLACED THE MAIN WHEEL ASSY ON THE TAXIWAY AND THE ACFT RETURNED BACK TO BASE. DISASSEMBLY THE TUBE WAS FOUND TO BE FAILED. THERE WAS NO SIGNS OF EXTERNAL DAMAGE ON THE TIRE. THIS TUBE AND THE FLEET HAD PREVIOUSLY CHANGED FROM ONE MFG TO ANOTHER MFG DUE TO FAILURES OF THOSE TYPES. TUBES ARE REPLACED EVERY SECOND TIRE CHANGE AS A PRACTICE, AND THIS WAS THE SECOND TIRE WITH THIS TUBE. THE FLEET WILL BE MONITORED GOING FORWARD.