What was found
ON TAXI OUT SMOKE WAS SEEN COMING OUT OF RIGHT REAR OF A/C. RIGHT HYDRAULIC PRESSURE 0, RIGHT HYDRAULIC QUANTITY 2. PINNED GEAR, TAXIED BACK TO GATE. INSP RIGHT REAR OF A/C, NO EVIDENCE OF SMOKE OR FIRE. FOUND RT ENG HYDRAULIC FLEX LINE BETWEEN PYLON AND FILTER ASSY CHAFED THROUGH ON FASTENER. REPLACED LINE AND SERVICED HYDRAULIC RSVR TO FULL. RAN ENGS PER PFHB, LEAK CHECK NORMAL, QTY NORMAL, A/C OK FOR SERVICE.