As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
POSSIBLE FUME EVENT PACK NR 2 -T/S PER TSM 05-50-00. REVIEWED CABIN ODER FORM. CREW REPORTED EVENT HAPPEND ON THE GATE WITH GROUND AIR CONNECTED WITH APU, PACK1 & 2 OFF. DISCONNECTED GROUND AIR RAN APU AND PACK 1 & PACK 2 SMELL DISSIPATED. NO ABNORMAL ODERS EMMITED FROM PACK SYSTEM. OPS CKS GOOD IAW AMM 21-00-00. OK FOR CONTINUED SERVICE.