What was found
16.MAR.2020 @ BOG -> FLIGHT AV8460 (BOG-VUP) PILOT REPORT WO 15941285: GROUND RETURN DUE TO STRONG SMELL ON COCKPIT AND CABIN SIMILAR TO DIRTY SOCKS, REMAINS EVEN WITH USE OF APU BLEED AND BOTH ENGINES BLEED. 16.MAR.2020 @ BOG -> CORRECTIVE ACTION AS FOLLOWS: IN ACCORDANCE WITH AMM 78-36-51-000-041-A THRUST REVERSER HALF DOOR ENG2 OPENING ACTUACTORS WERE REMOVED.REV DATE 01-FEB-2020 FSN: 005 (TLA 4487). IN ACCORDANCE WITH AMM 78-36-51-000-041-A THURST REVERSER HALF DOOR ENG 2 OPENING ACTUARORS WERE REMOVED AND IAW AMM 78-36-51-400-041-A THE THURST REVERSER HALF DOOR OPENING ACTUACTOR WERE INSTALLED TEST SATISFACTORY (TLA 5998). IN ACCORDANCE WITH AMM 21-21-41 OPB401 CONF00 THE RECIRCULATION FILTERS FINS:4012 AND 4013 WERE REPLACED. AIR CONDITIONIG OPERATED FOR 10 MIN, NO STRANGE ODORS (TLA 5899). AIRCRAFT WAS RETURNED TO SERVICE.