As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIRTY SOCK ODOR THROUGHOUT AIRCRAFT, DETECTED BY ALL FLIGHT CREW MEMBERS. ODOR ISOLATED TO APU. PEFORMED DECONTAMINATION OF THE (ECS) IAW AMM 21-00-00-615-004-A. R & R THE DEOILER CASING SEAL ASSY AT THE NR 1 ENGINE IAW AMM 72-60-31. NO LEAKS. REMOVED & REPLACED APU COOLING FAN IAW AMM 49-52-51 & APU OIL COOLER IAW AMM 49-91-44, OPS CK & LEAK CHECK OK, NO ODOR.