What was found
(AIRCRAFT NOT GROUNDED) AFT FA REPORTED DIRTY SOCK SMELL IN THE AFT GALLEY AREA. OCCURED ABOUT 1:30 INTO FLIGHT WITH ABOUT 30-40 MIN LEFT. REPRTED SMELL CONTINUED DURING DESCENT AND ALSO AT GATE WITH APU BLEED ON. CABIN ODOR REPORT FILLED OUT. / IN RESPONSE TO 218NV DIRTY SOCK EVENT IT WAS DISCOVERED BY IWAMX TEAM THAT THERE IS A STRONG EVIDENCE OF A HYDRAULIC LEAK WHICH MAYBE CONTAMINATING THE APU. COMPLETED OPS CK REF AMM 49-00-00-860-003A. C/W TC 21-000-002. THIS CLEARS MEL 49-10-01A, MDDR# 202954. PLACARDS REMOVED.