As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 407, PWM-JFK. DIRTY SOCKS ODOR OBSERVED DURING CRUISE BY INFLIGHT. RAN ODOR ISOLATION CHECKLIST & ISOLATED PACK 2. LEVEL 2 EVENT 3RD EVENT SINCE 9/2/26; COMPLIEDWITH INFO NOTICE 2017-T015N STEPS 1 & 2. IDENTIFIED ODOR AS TYPE 3 ENG 2. DECONTAMINATION LEVEL C WAS ACCOMPLISHED IAW AMM 21-00-00-615-804-A. ACFT OKAY FOR SERVICE.