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 AND EICAS MSG APU FAULT DISPLAYED. TROUBLESHOT IAW FIM 49-11-00/101, FIG 103. FOUND LOW OIL PRESSURE ON ECU BITE. SERVICED APU OIL LEVEL TO FULL AFTER FINDING 5 PINTS LOW. REPLACED APU OIL CAP PACKING, RAN APU FOR 4HRS, NO LEAKS NOTED.