As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 5923 - RIC - FLIGHT CREW REPORTED ENGINE 1 HYDRAULIC PUM FAILED. CREW PERFORMED AIR RETURN AND LANDED UNEVENTFULLY. RIC MX REMOVED AND REPLACED ENGINE DRIVEN HYDRAULIC SYSTEM 1 PRESSURE SWITCH AND PERFORMED OPERATIONAL CHECK SUCCESSFULLY. ACFT WAS APPROVED TO RETURN TO SERVICE.