As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU SHUTDOWN AT GATE JUST PRIOR TO PUSHBACK. PERFORMED VISUAL INSPECTION OF APU. NO OIL LEAKS NOTED AND OIL LEVEL VISUALLY CONFIRMED TO BE FULL. PERFORMED FAULT ISOLATION PROCEDURES IAW FIM AR49-90-00-810-803. DURING MULTIPLE STARTS AND STOPS THERE WERE NO FURTHER FAULTS DETECTED AND CURRENT STATUS SHOWS NO FAILURES FOUND.