As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 2164 EN-ROUTE, CREW NOTED A DIRTY SOCK ODOR ONLY IN THE COCKPIT & WAS VERY STRONG AT TAKEOFF THRUST. THE BLEEDS WERE ON THE ENGS & THE APU WAS OFF. THE ODOR WAS VERY STRONG FOR 6 MINUTES. PLACED THE NR 2 PACK ON MEL. REPLACED BOTH RECIRCULATION AIR FILTERS IAW AMM 21-24-02-000. OPERATIONS CHECKED OK. RAN RT PACK WITH ENGS AT 70% N1 FOR 5 MINUTES IAW FIM 21-20-00-810-803A. NO SMELL NOTED. REMOVED MEL FROM NR 2 PACK.