As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) RAM AIR TURBINE (RAT) MODULE CHECK VALVE CRACKED. LOSS OF HYDRAULIC FLUID. INVESTIGATION FOUND THAT THE HEX HEAD SEPARATEDFROM THE CHECK VALVE BODY DUE TO A FRACTURE BETWEEN THE UPPER O' RING GROOVE AND THE INTERNAL BODY THREAD RELIEF.