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 LIGHT ILLUMINATED EICAS MSG APU FAULT DISPLAYED. PERFORMED FIM 49-11-0 CHECKED FOR EXTERNAL OIL LEAKS. NO LEAKS NOTED. ECU FAULT LOW OIL PRESSURE. SERVICED 9 PINTS OIL. RAN APU 1HR 40 MIN NO CHANGE IN OIL LEVEL. REMOVED AND REPLACED OIL FILLER CAP SEAL AND LOW OIL PRESSURE SWITCH AS A PRECAUTION. LEAK AND OPS CHECKED GOOD.