As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 128 - PHX - CABIN ODOR - NR 1 ENGINE IS PUTTING OILY SMELL IN THE AIRCRAFT - SMELLS LIKE DIRTY SOCKS. IT'S NOT BEING FILTERED OUT AND FLIGHT ATTENDANTS ADVISED SMELL IS REALLY BAD IN BACK OF AIRCRAFT. MAINTENANCE PERFORMED COMPRESSOR WASH AND REPLACED RECIRCULATION AND OZONE FILTERS.