What was found
FUEL LINE, .3750 INCH, SERVING RIGHT WING TANK TO FUEL SELECTOR HAD DEVELOPED PIN HOLE LEAKS DUE TO PITTING CORROSION. LINE LIES UNDER COCKPIT FLOOR, BUT IN CLOSE PROXIMITY TO UNDERSIDE OF FLOOR. BELIEVE CORROSION DUE TO YEARS OF MOISTURE DRAINING AT THE REAR OF THE FLOORBOARDS AND BEING HELD BY CAPILLARY ACTION BETWEEN FLOORBOARD AND LINE.