As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - RECEIVED A HYDRAULIC LOW PRESSURE CAUTION FOR SYSTEM 2. PER THE CHECKLIST CLOSED THE RIGHT SHUTOFF VALVE AND CONTINUED TO PDX (35 MINUTES). MAINTENANCE FOUND THE PRESSURE OUTPUT LINE FOR THE DAMPER TO BE LEAKING. REPLACED LINE. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.