As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING NON-ROUTINE, APU SCAVENGE OIL FILTER R & R FOUND LUBE MOD FILTER DPI INDICATOR EXTENDED. ACFT GROUNDED. PERFORMED OIL FILTER INDICATOR SERVICING REF: MM 49-91-13 MAG PLUG CLEAN/FILTER CLEAN NO DEBRIS REPLACED FILTER, OPS/LEAK CHECK GOOD.