As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRANGE SMELL NOTICED BY FLIGHT CREW ON TAXI IN.<[01] PERFORMED GVI OF CABIN WITH PACKS IN AUTO MODE; SPOKE WITH FLIGHT ATTENDNTS; THEY STATED SCENT WAS GONE MOMENTS AFTER SYSTEM WAS CYCLED; NOT FURTHER DEFECTS OR SMELLS PRESENT AT THIS MOMENT IN PASSENGER CABIN OR FLIGHT DECK COMPARTMENT; IAW AMM 21-25-00.