As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING LEVEL OFF AT CRUISE, RECIEVED A MODERATE DIRTY SOCKS ODOR. APPLIED COM SUPPPLEMENTAL PROCEDURE AND THE SMELL WENT AWAY WHEN PACK 1 WAS TURNED OFF. PERFORMED TSM 05-50-00-810-831-A, FOUND PACK 1 TO BE CONTAMINATED MX PROCEDURE C/W