As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU FAULT CAUTION, APU AUTO SHUTDOWN, RESTARTED, RAN FOR 5 MIN, AUTO SHUTDOWN AGAIN RAN FOR 5 MIN AUTO SHUTDOWN AGAIN. INTERROGATED APU ECU SHUTDOWN HISTORY SHOWS SPEED LOSS. FOUND APU OIL LOW. SERVICED APU OIL WITH 2 QTS. OPS CHECKED IAW 49-10-00. OPS AND LEAK CHECKED GOOD.