As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYDRAULICS SYSTEM FAILURE. FLIGHT CREW RAN THE QRH, AND DECLARED AN EMERGENCY. HYD PUMP 3A LOW PRESSURE CAUTION IN FLIGHT. REMOVED AND REPLACED NR 3A HYD ACMP. SERVICED 3A HYD SYS TO 55% AT 49 DEGREES C. PERFORMED OPERATIONAL AND LEAK CHECK. NO LEAKS AT THIS TIME OPS CHECK GOOD.