As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ECAM MESSAGE APU AUTO SHUTDOWN DISPLAYED ON UPPER ECAM SCREEN - APU. APU AUTO SHUTDOWN DURING START ON TAXI IN. :"RE-SET" "OPS CHECK OK" HAS MADE THIS ITEM-C. APU ASD W.O. BITE MSG REF: TSM 490000-810-992-A (POSSIBLE WATER INGRESS IN PANEL 121AL). REMOVED IGNITER PLUGS AND FOUND FOULED. REPLACED PLUGS IAW AMM 49-41-41, OPS CHECK GOOD AT THIS TIME.