As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU OIL TEMP CAUTION MESSAGE, DIVERTED TO ATL REF IDG NR 1 ON MEL. INTERROGATED ECU, TROUBLESHOT SYSTEM, REMOVED AND REPLACED HOT OIL TEMPERATURE SENSOR IAW AMM 49-91-25. RAN APU 15 MINUTES WITH LOADS APPLIED. NO DEFECTS NOTED, LEAK CHECK GOOD. (M)