As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) AIRCRAFT LANDED WITH CENTRE HYDRAULIC SYSTEM LOW PRESSURE AND QUANTITY - INVESTIGATION FOUND THE ADP (AIR DRIVEN PUMP) PRESSURE FILTER BOWL SEPARATED FROM THE MODULE DUE TO FATIGUE CRACKING IN THE LAST THREAD OF THE BOWL - TOTAL LOSS OF HYDRAULIC FLUID