What was found
PHX - BRAKES - BRAKES MOMENTARILY GRABBED ON TOUCHDOWN, AUTO BRAKES WERE NOT SELECTED AND MANUAL BRAKES WERE NOT BEING APPLIED, BRAKES RELEASED AFTER ABOUT 1 SECOND. MAINTENANCE TROUBLESHOT PER TSM 32-42-00-810-889, AND REMOVED AND REPLACED PUSH BUTTON SWITCHES 7GG & 8GG, OPERATIONAL CHECK WAS GOOD.