As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FLIGHT LEFT AFT LAV SMOKE DETECTOR SOUNDED AND CREW REPORTED SMOKE/SMELL. FLIGHT CREW DIVERTED AC TO MKE AND PERFORMED AN UNEVENTFUL LANDING. MAINTENANCE FOUND AN OIL LEAK AT APU GENERATOR DRIVE PAD SEAL. APU AREA CLEANED AND APU PLACED ON MEL. PACK BURNOUT PROCEDURES FOLLOWED AND COALESCER BAGS REPLACED.