As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAINT LIGHT ILLUM. ON O/H PANEL. GROUNDED - YES. FOUND MAINTENANCE MESSAGE 73-45031 THE OMF SHOWS NOT ACTIVE CONSIDERED INTERMITTENT FAULT ERASED MESSAGE VERIFIED NO MAINTENACE LIGHT OR ACTIVE MESSAGE AS PER B737-9 IFIM TASK G73-00-00-810-A78.