As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
0305927: DURING CRUISE WITH LT GENERATOR INOPERATIVE, APU HIGH OIL TEMPERATURE CAME ON. CHECK LIST WAS PERFORMED AND FLIGHT DIVERTED TO RNG.IT WAS PERFORMED INSPECTION CHECK TO APU FOR CONDITION AND PERFORMED OPERATIONAL TEST IAW AMM 49-00-00 PAGE 501. IT DID NOT DUPLICATE FAULT ON GROUND.LH GENERATOR WAS REPLACED.