As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CHECK FOUND APU FAULT MAINT MSG 49 94304 OIL LEVEL SENSOR SHOW CIRCUIT FAILURE. ACCOMPLISHED FIM TASK 49 90 00 810 811. WIRE HARNESS CHECK GOOD. REMOVED AND REPLACED OIL LEVEL SENSOR AS PRECAUTION REF MM 49 94 11. VERIFIED PART. SEAMC CONTACTED. OPS CHECK APU, NO LEAKS. OK FOR SERVICE AT THIS TIME.