As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACCOMPLISHING TC 78349013 FOUND APU OIL FILTER DELTA P INDICATOR POPPED. REMOVED AND REPLACED APU OIL FILTER ELEMENT NO CONTAMINATION NOTED. RESET DELTA P INDICATOR. INSPECTED MAGNETIC DRAIN PLUG NO CONTAMINATION NOTED. REF AMM'S 49 91 13 & 49 91 81. LEAK CHECK GOOD. RAN APU FIVE MINUTES, OPS CHECK GOOD REF AMM 49 91 13.