As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU OIL PRESSURE CAUTION MSG COMES ON AFTER TAKEOFF AND REMAINS ON. RETURNED TO SLC. TROUBLESHOT SYSTEM. FAULT CODES IN ECU INDICATED HOT INDICATION DUE TO HIGH OIL TEMP. REPLACED PLUGGED OIL COOLER IAW MM 49-91-07 AND HIGH OIL TEMP SENSOR IAW MM 49-91-25. CHECKED FOR CONTAMINENTS IN OIL FILTER, NONE NOTED. OPS AND LEAK CHECKS GOOD. CLEARED FAULT CODES IN ECU. P/N ON 160382-1, S/N ON 1514, P/N OFF 160346-2, S/N OFF 76-974.