What was found
FLT#354, DUB-BOS. (ETOPS) DIRTY SOCK ODOR OBSERVED BY AFT IN-FLIGHT CREW ON FINAL AND APPCH.ODOR DISSIPATED PRIOR TO TOUCH DOWN.CABIN ODOR REPORTING FORM COMPLETED; COMPLIED WITH INFO NOTICE 2017-T015 SECTION A. ISOLATED FAULT TO #2 ENG. REF DEFECT 4098450, ITEM 1 (REMOVED AND REPLACED #2 ENG IAW 71-00-50-400-802-A, LEAK AND OPS CHECK GOOD). THIS CLEARS A/C FOR SERVICE.