As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED, RECEIVED A BLEED 1 VALVE FAIL MESSAGE DURING TAKEOFF. THE CREW RETURNED TO KDCA AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE NUMBER 1 HIGH STAGE VALVE PRESSURE SWITCH. OPERATIONAL CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.