As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 161, JFK-JFK. (AIRCRAFT PERFORMED AIR TURN BACK) "FUME EVENT ON TAKE OFF LEVEL 2 DIRTY SOCK SMELL/ CHEMICAL ODOR CABIN AND FLIGHT DECK SUSPECT PACK 2, TURNED PACK 2 OFF. REPORTED SLIGHT SMELL FROM FA ON DECENT. GATE AGENT SMELLED IT OPENING THE DOOR.; ACCOMPLISHED LEVEL B DECONTAMINATION OF BLEED AIR DUCTS/ ECS SYSTEM IAW AMM 36-10-00+ 21-00-00. "