As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AMBER MAINT LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED B737-9 IFIM TASK 31-65-00-750-801 FOUND APU OIL QTY LOW. INTERROGATED MX CTL PAGE RESET MX LIGHT EXTINGUISHED AND STAYED EXTINGUISHED OIL QTY IS FULL. MX DATA PAGES SHOW QTY FULL NO LATCH MESSAGES. OK FOR SERVICE.