As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU SHUTDOWN. ATTEMPTED RESTART, SHUTDOWN AFTER 1 MINUTE. *S/D* FOUND OIL SERVICE CAP FALSE LATCHED AND NO OIL IN SIGHT GAUGE. SERVICED APU OIL TO FULL AND RAN APU FOR AN HOUR. OP CHECKED NORMAL. APU SERIAL NUMBER 61889, TOTAL TIME 433, TOTAL CYCLES 480.