As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIRTY SOCK ODOR REPORTED BY FLIGHT ATTENDANTS DURING FLIGHT. ODOR VERY BAD IN FLIGHT DECK AS WELL. AUXILARY POWER UNIT DETERMINED TO BE CAUSE OF CABIN ODOR. AIRCRAFT WAS GROUNDED. REMOVED ADN REPLACED THE APU OIL QUANTITY TRANSMITTER IAW 49-13-16 AND WASHED APU IAW AMM 49-00-00-100-A. OPS CHECKED GOOD.