As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB PASSING THROUGH 8000 FT, THE CABIN CREW REPORTED A BURNING OIL SMELL FOLLOWED BY THE AFT LAVATORY SMOKE DETECTORS SOUNDING. SMELL DISSIPATED AND FLIGHT CONTINUED TO ATL. UPON ARRIVAL MAINTENANCE FOUND THE APU OIL CAP IMPROPERLY INSTALLED. REPLACED APU AND ACCOMPLISHED OPERATION 5089 - PACK BURNOUT (2010-D0829)(DLM88101854).