As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF TASK CARD NUMBER 78349013 APU OIL FILTER DELTA P INDICATOR EXTENDED. ACCOMPLISHED OIL FILTER DELTA P INDICATOR SERVICING REF TASK 49 91 13 NO CONTAMINATION NOTED ON EITHER MAGNETIC DRAIN PLUG OR OIL FILTER ELEMENT. REPLACED DELTA P INDICATOR. WOULD NOT RESET. OPS AND LEAK CHECK GOOD REF AMM 49 91 13.