As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYS - APU FAULT. APU WOULD NOT START AFTER LANDING PRIOR TO THE GATE (2 ATTEMPTS). BITE APU ECU IAW FIM49-11-00. NO FAULTS, NO FLAGS, ONLY ABORTED START MSG ON ECU WHICH CAPT. INITIATED. NO LRU FAULTS. OIL QTY FULL. INSPECT APU COND AND SECURITY CK. GOOD STARTED APU NORMALLY OPS AND LEAK CK ON GND NORMAL OK FOR SERVICE APU DOOR SECURED. NO FAULT MSG REMAIN.