What was found
FLUID LEAK FROM LEFT ENGINE PYLON DRAIN TUBE. LOCATED ON LOWER AFT CORNER OF ENGINE PYLON. MAINT TEXT: FOUND LARGE HYD LINE DRIPPING INSIDE AFT SIDE OF PYLON. UNION AND 'B' NUT VISIBLY DRIPPING. IT APPEARS THAT AFT PYL ON TRAILING EDGE PANEL NEEDS TO BE REMOVED SO THAT 2 EA MECHS CAN RETORQUE AND HOLD LINE AS NEEDED FROM EACH END OF LEAK. EST MIN 2 HRS. IF IT STILL LEAKS AFTER RETORQUE, POSSIBLE CRACK EXISTS. REPLACE HYD LINE IN NR 1 PYLON. OPS CHECK GOOD.