As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: DESCENDING BELOW 15000FT A LIGHT "DIRTY SOCK SMELL" BEGAN TO BENOTICED IN THE FLIGHT DECK AND ONE F/A ALSO NOTICED IT IN THE CABIN AROUND THE SAME TIME. AT THE GATE WITH THE APU RUNNING FOR AT LEAST 10 MIN THE SMELL BRIEFLY TURNED TO A STRONG WAXY SMELL FOR A FEW MINUTES BEFORE DISSIPATING TO THE PREVIOUS LIGHT SMELL. (OPEN)