As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) NR 1 ENGINE DRIVEN HYDRAULIC PUMP PRESSURE LINE UNION JAM NUT LOOSE AND LEAKING. INVESTIGATION FOUND THAT IT WAS CHAFED THROUGH FOR 50 PERCENT OF THE CIRCUMFERENCE ON THE JAM NUT SIDE WITH A CORRESPONDING RIDGE (FRACTURE) ON THE INSIDE. UNION IS LOCATED IN THE PYLON. SUSPECT CAUSED BY INCORRECT FITMENT OF THE UNION AND PIPE.