As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
POWER BRAKE LOW PRESS AND ANTI-SKID WENT INOP. ANNUNCIATORS ILLUMINATED DURING TAXI, FOLLOWED BY A LOSS OF BRAKE PRESSURE IN THE PILOT AND COPILOT BRAKE PEDALS. TROUBLESHOT SYSTEM REPLACED PUMP ELECTRICAL RELAY AND LOW PRESSURE SWITCH OPS CHECK AND LEAK CHECK SATISFACTORY. ALL WORK DONE IAW CESSNA 560 MM CHAPTER 32-42-00.