As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: APU FAILED IN FLIGHT, CAUSED A SINGLE SOURCE OF ELECTRICAL SOURCE. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT MEM. REMOVED AND REPLACED LOW OIL PRESSURE SWITCH, PER AMM 49-94-22. REMOVED AND REPLACED NUMBER 2 ENGINE (IDG)-INTEGRATED DRIVE GENERATOR (AALA202510026944), PER AMM 24-11-11. OPERATIONAL CHECK GOOD.