As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY BRAKE ACCUMULATOR MESSAGE IN FLIGHT. P/R LIGHT IS ON AT -45 OAT, GOES OUT AT -5 OAT, ALL PRESSURES APPEARED TO BE NORMAL AND NOT FLUCTUATING DURING FLIGHT. MAINTENANCE REMOVED AND REPLACED EMERGENCY BRAKE ACCUMULATOR PRESSURE SWITCH.