As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED APU OIL TEMP CAUTION MESSAGE IN FLIGHT. CREW DIVERTED AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED APU OIL LEVEL. NO SERVICING REQUIRED. MAINTENANCE REMOVED, INSPECTED, CLEANED AND REINSTALLED APU OIL TEMPERATURE BULB ELECTRICAL CONNECTOR AND PERFORMED CHECKS IAW AMM. ACFT RELEASED FOR SERVICE.