What was found
DURING INSPECTION, CORROSION WAS FOUND IN THREE LOCATIONS BETWEEN STA 700 AND STA 720, S-27R AND S-28L. DAMAGE WAS MACHINED TO LEAVE A MAXIMUM THICKNESS OF 0.063 IN THE CLAD 2024-T3 SKIN. ALSO, THERE IS AN EXISTING EXTERNAL REPAIR DOUBLER, INSTALLED PER ER/A 208573-14 ON THE LOWER SKIN JUST AFT OF STA 720, ON S-28R. DOUBLER AND DAMGED SKIN WAS REMOVED AND A SKIN SPLICE WAS INSTALLED PER THE BOEING S/B 727-53A203, REV 2, REF DL ERA 302829-14AD.