As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ODOR OF DIRTY SOCKS IN THE CABIN, DISSIPATED WITHOUT FLIGHT OR CABIN CREW ACTIONS. OCCURED FROM TAKEOFF ROLL THROUGH 7000 FT. ACCOMPLISHED MCM 05-96-70. ODOR DETERMINED TO BE TYPE 4 ODOR. THE AIRCRAFT WAS GROUNDED. REPLACED THE LEFT AND RIGHT AIR CONDITIONER PRESSURE REGULATOR VALVES IAW MM 21-31-01, AND THE LEFT AND RIGHT COALESCER BAGS IAW MM 21-20-02. OPS AND LEAK CHECKED GOOD.