As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON LANDING FELT PULSING IN BRAKE PEDALS AND PEDALS WERE HARD TO PRESS. BRAKE PRESSURE ACCUMULATOR PUMP (NOSE) CYCLES ON APPROXIMATELY EVERY 20-30 SECONDS. PUMP MOTOR SEEMS TO CYCLE ON MORE FREQUENTLY THAN NORMAL. TROUBLE SHOT SYSTEM. DETERMINED BRAKE ACCUMULATOR OVER SERVICED, SERVICED ACCUMULATOR TO PROPER LEVEL OPS CK GOOD ALL WORK DONE I/A/W CITATION ULTRA M/M CHAPTER 12-13-02