As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT 30000 FEET, CRANKED APU AND ELECTRICAL BACKUP, F/A CALLED AND REPORTED ODOR IN CABIN. SHUTDOWN APU IMMEDIATELY. ODOR DISSAPATED. MAINTENANCE TROUBLESHOT AND FOUND APU OIL OVERSERVICED.. REMOVED .5 QUART OF OIL FROM APU AND CLEANED COMPARTMENT. RAN APU AND ENGINE. NO ODORS. PERFORMED DUCT BURNOUT AND REPLACED LT/RT COALESCER BAGS. AIRCRAFT CHECKS OK.