As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU MAINT LIGHT ILLUMINATED. ACFT GROUNDED. FOUND APU OIL PAGE ON MCDU READS ADD, APU READS FULL ON SIGHT GAUGE, CLEANED AND RESEATED OIL LEVEL SENSOR CONNECTOR, APU NOW READS FULL ON MCDU APU OIL QUAUTITY PAGE IAW WDM 49-94-21 AND FIM 49-90, 804. OPS NORMAL.