What was found
INTERMITTENT ROTTEN EGG SMELL REPORTED IN AFT CABIN, OCCURRING ON GROUND, CLIMB, CRUISE AND DESCENT. FLIGHT ATTENDANTS REPORTED NAUSEA AND VOMITING. MAINTENANCE FOUND EVIDENCE OF A SLIGHT HYDRAULIC LEAK AT THE GREEN SYSTEM 3-LINE CLUSTER (FRAME 35) - TIGHTENED B-NUTS. ALSO REPLACED AVIONIC VENT FILTER, OZONE FILTERS AND HEPA FILTERS AS A PRECAUTION.