What was found
FUSELAGE SKIN FS 560-580, STRG 28L, SKIN CORROSION REPAIR. AN AREA OF CORROSION WAS FOUND IN THE FUSELAGE SKIN NEAR STRINGER 28L BETWEEN FS 559 AND 564. THE CORROSION WAS CUTOUT WITH A 7 BY 1.85 CUTOUT. THERE WAS AN EXISTING REPAIR DOUBLER ADJACENT TO THIS LOCATION FOR THE REPAIR OF TWO SMALLER SKIN CUTOUTS. THE EXISTING REPAIR DOUBLER WAS REMOVED AND A SINGLE EXTERNAL ALUMINUM DOUBLER INSTALLED TO REPAIR ALL CUTOUTS PER ER/A 367221-14, REV B.