As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AIRBUS CANADA SER CASE: 46545 SER - AIR TURN BACK - LH PACK DISCHARGE DUCT DISBANDED DURING CLIMB OUT FAULT MESSAGE `L PACK FAIL/L PACK DISCHARGE DUCT DISCONNECTED`. ON GROUND, FOUND THE LH PACK DISCHARGE DUCT (PN C08126520-N0002 DEFECT AND LEAKING. THE DUCT IS DISBANDED AT AROUND 50-60% OF THE CIRCUMFERENCE. THE AIRCRAFT IS AOG AT THE MOMENT. (TC# 20190625011)