As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUME EVENT: HAD FUMES SHORTLY AFTER TAKE OFF, PERFORMED ODOR/FUMES CHECKLIST. FOUND PACK # 1 TO BE THE CAUSE. FUMES WWENT AWAY WHEN PACK # 1 WAS TURNED OFF. SMELL RESEMBLE DIRTY SOCKS.-PERFORMED TSM O5-50-00 FOUND ODOR SOURCE TO BE PACK # 1.