As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BLUE MAINTENANCE LIGHT ILLUMINATED ON APU. MAINTENANCE MESSAGE 49-91227. LOW OIL QUANTITY. ACFT GROUNDED. PERFORMED FIMM TASK 49-90 TASK 804. CURRENT STATUS SHOWS NO FAULTS. FAULT CLEARED. VISUALLY INSPECTED OIL QTY. CHECKS FULL. IAW FIM THERE WAS AN INTERMITTENT FAULT. OPERATED APU. GROUND VERIFICATION SUCCESSFUL.