As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PWR BRKS CB POPPED. ANTISD INOP ANNUNCIATOR ILLUMINATED. RESET CB ONCE AND IT POPPED AGAIN. AFTER 5 MIN TAXI, LO BRK PRESS ANNUNCIATOR ILLUMINATED FOLLOWED BY LOSS OF BRAKES. DRAINED AND FLUSHED BRAKE SYSTEM HYDRAULIC FLUID AND SERVICED RESERVOIR TO CORRECT LEVEL IAW AMM 12-12-02. BLED LEFT AND RIGHT BRAKES IAW AMM 32-44-00. PERFORMED GROUND RUN TAXI CHECK IAW AMM 71-00-04 WITH NO BRAKE SYSTEM DEFECTS NOTED.