As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AT APPROXIMATELY 60 KNOTS ON LANDING ROLLOUT (MAN BREAKING) BREAKS SURGED REPEATEDLY CONTINUED PULSING ENTIRE TIME BREAK PEDALS PUSHED TRIPLE INDICATORS SHOWED BREAK PRESSURES ASSSOCIATED WITH SURGES. AFTER PARKING BREAK SET AND RELEASED PULSING STOPPED. MAINTENANCE REPLACED AUTOMATIC SELECTOR 2576GM PER AMM 32-42-13. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.