As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SLIGHT OILY ODOR IN BLEEDS ON DECENT, ODOR LIKE DIRTY GYM SOCKS. INSPECTED NR1 AND NR2 ENGINES CHECKED THE CIS FOR DEFECTS NONE NOTED. CHECKED INTAKE ADAPTORS, INTAKE THROATS, ENGINE COMPARTMENTS AND CP HOOK UP FOR ANY DEFECTS. NO DEFECTS NOTED. R & R RECIRCULATION FILTER IAW AMM TASKS 21-22-22-000-801/21-22-22-400-801. GROUND RAN NR1 AND NR2 ENGINES WITH BLEEDS ON, NO ODORS NOTICED. OPS CHECK NORMAL. RETURNED TO SERVICE.