As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUME EVENT @2000 FINAL TURNED OFF PACK 1 AND SMELL STOPPED-PERFORMED TSM 05-50-810-831 FOND APU COMPARTMENT WOTH NO CONTAMINATION RAN APU BLEED FOUND NO CONTAMINATION IAW 49-00-00 RAN ENGINES 1 AND 2 71-00-00 ISOLATED ODOR SOURCE TO PACK #1. USED AERO TRACER. RF TO L/P 3275932-2