As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD SYS B HYD PRESSURE FAILURE BOTH ENGINE & ELECTRIC PRESSURE LOSS. EMERGENCY DECLARED FLIGHT LANDED ORD WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED SYSTEM B PRESSURE MODULE. SYSTEM GROUND CHECKED NORMAL OPERATION CLOSED.