What was found
UPON OPENING SEVERAL WING TANK PANELS, MECHANIC NOTICED CHAFING DAMAGE TO LT AND RT FUEL LINES. A TOTAL OF 2 FUEL LINES WITH THE SAME PN WERE REPLACED, 1 IN EACH WING. UPON FURTHER INVESTIGATION, FOUND NUMEROUS LINES AND FITTING ASSOCIATED WITH THE FUEL EJECTOR PUMP TO ALSO BE CHAFING. MULTIPLE COMPONENTS REQUIRED REPLACEMENT. ALL OF THESE COMPONENTS WERE REPLACE FOR THE SAME DISCREPANCY DURING THE LAST 2B INSPECTION ON 4/2012.