As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BLUE APU " MAINT" LIGHT ON WITH APU START ON GROUND. ACFT GROUNDED. APU OIL QTY SHOWS FULL ACCOMPLISHED APU BITE IAW FIM 49-60, TASK 801 CURRENT STATUS SHOWS MSG 49-11019, DC POWER LOSS SHUTDOWN ACCOMPLISHED FIM 49-10, TASK 801 APU START & SHUTDOWN NORMAL WITH NO FAULTS.