As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SUP - BTB - AFTER ENGINE START FA'S REPORTED UNUSUAL SMELL & VAPORS IN CABIN.// REMOVED AND REPLACED ENG #2 PER TASK CARD J321--72-HWI-01 AND J321 -72-HWI-02. ACCOMPLISHED DECONTAMINATION OF THE ECS SYS. PER AMM 21-00-00-615-004-A. RAN BOTH ENG'S & BOTH PACKS SEPARATELY OPS CK GOOD NO UNUSUAL ODORS OR VAPORS NOTED. OK FOR SERVICE.