What was found
WHILE CARRYING OUT PHASE 5 TASK 23-61-00-760 INSP OF STATIC WICKS, IT WAS NOTED THAT EVEN THOUGH THE RESISTANCE CHECK WAS WITHIN LIMITS, THE STATIC WICK BASE APPEARED TO BE NO LONGER BONDED TO THE SKIN ON BOTH AILERONS AND THE WING T/E. WHEN THE STATIC WICK BASES WERE REMOVED, LIGHT CORROSION WAS FOUND UNDER ALL EXCEPT THE OTBD WING T/E WHERE CORROSION WAS FAIRLY EXTENSIVE. IN ATTEMPTING TO BLEND OUT THE CORROSION THE 0.025" SKIN OF THE WING TIP T/E WAS REDUCED TO LESS THAN 0.020" THICKNESS WHICH IS MORE THAN THE SRM 51-10-01, PARA 2 A. ALLOWS. BUT SINCE THIS SEEMS TO BE BECOMING A FLEET WIDE ISSUE WE HAVE APPLIED TO MFG ENGINEERING FOR A REPAIR.