As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYS, APU HAD AUTO SHUTDOWN FAULT LGT ILLUM EICAS MSG APU FAULT DISPLAYED. ECU BITE SHOWED LOP FAULT ON LEG 1 AND 2. FOUND APU OIL QTY AT ZERO. FOUND APU ASSY POSSIBLY CRACKED AND OIL IN THE EXHAUST AREA AND APU COMPT REMOVED AND REPLACED APU IAW APU CHANGE SPM OPS AND LEAK CHECK GOOD.