As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIRTY SOCK SMELL REPORTED IN CABIN. WHILE TROUBLESHOOTING, MAINTENANCE FOUND APU OIL LEVEL LOW, OIL RESIDUE IN APU INLET, AND APU GENERATOR LEAKING OIL OUT OF ELECTRICAL CONNECTOR. REPLACED THE APU AND APU GENERATOR. HONEYWELL REPORTED GEARBOX HAD A SPLITLINE LEAK.