As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED HYD 1 LO PRESS CAUTION MSG IN FLIGHT. AC PUMP ON, PRESSURE CONTINUED TO FALL. TURNED OFF ACMP AFTER 1 MINUTE OF OPERATION. DIVERTED TO CLT. EDP OPERATED 1 HOUR. QTY SHOWED DASHES. REPLACED EDP1, HYD LINE AND FITTING, SERVICED AND BLED NR 1 HYD SYS OPS & LEAK CHECK GOOD.