What was found
CRUISE FL 380, AFT CABIN REPORTED PERFUMY/GASSY SMELL. XBLEED SHUT AND PACK 2 OFF AND ODOR DISSIPATED. ( PACKS A319 WITH MOD 31283/MP P7125 (FWC H2-F1 STND) AND WITH MOD. 30626/MP K6443 (ENHANCED ECS) - AT OR BELOW FL 370 )-FOUND GREEN HYD DRAIN VALVE LEAK. R/R DRAIN VALVE IAW AMM 29-11-40 PB401. LEAK CHECKED OK. PERFORMED PRE-CONDITIONING IAW AMM 12-33-21 PB201 FOR 20 MINS. NO FUME DETECTED. THIS CLEARS DMI 247247401. PLACARD REMOVED. DMI LOG UPDATED. MOC NOTIFIED.