As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU FAILED TO START ON TAXI-IN . APU LOW OIL PRESSURE LIGHT ILLUMINATED BUT NO EGT RISE. ACFT GROUNDED. VISUALLY CHECKED APU OIL. NO CURRENT FAULTS FOUND ON BITE CHECK OPS CHECK START NORMAL. APU OPS TEST NORMAL IAW AMM 49-11-210-801. NO HISTORY LAST 30 DAYS.