What was found
DURING TAKE-OFF ROLL, CAPT’S SEAT ROLLED BACK. ABORTED TAKE-OFF. AS A SIDE NOTE , BRAKE TEMPS WENT TO 7 AND 8’S DUE TO THE ABORTED TAKE-OFF.AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE REPLACED BROKEN SPRING ON HORIZONTAL ADJUSTMENT LEVER. OPS CHECKS NORMAL IAW B767 AMM 25-11-01. COMPLIED WITH HIGH ENERGY STOP INSP. IAW B767 AMM 05-51-14. FOUND #6 MAIN TIRE PARTIALLY DEFLATED. NO OTHER DAMAGE NOTED. REMOVED AND REPLACED #5 & #6 MAIN TIRE/WHEEL ASSYS. IAW B767AMM 32-45-01. AIRCRAFT RETURNED TO SERVICE.