As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI "LO BRAKE PRESS" AND "ANTISKID INOP" ILLUMINATED. LOST BRAKE PEDAL PRESSURE, STOPPPED AIRCRAFT WITH EMERGENCY BRAKES. HAD AIRCRAFT TOWED TO PARKING POSITION, POST FLIGHT INSPECTION FOUND LEAKING OIL FROM AVIONICS BAY AND NOSE GEAR ASSEMBLY. - FOUND O-RING AT ANTI SKID POWER PACK FILTER BOWL LEAKING, INSTALLED NEW O-RING AND APPLIED POWER TO ANTI SKID NO LEAKS NOTED. ALL WORK DONE IAW CESSNA 560XL MM CHAPTER 32-42-00.