What was found
THE BS 1183 BULKHEAD WEB WAS FOUND CRACKED AT RBL 26. THERE IS A 1 INCH CRACK AT WL 170. THE WEB IS A BONDED ASSEMBLY OF 2024-T3 CLAD WITH A LOCAL THICKNESS OF 0.050 INCH. THE CRACK LOCATION IS OUTSIDE OF THE INSPECITON AREA SPECIFIED BY BOEING SERVICE BULLETIN 727-53-171. THE VERTICAL STIFFENER AT RBL 26, THE TOPIC OF BOEING SERVICE BULLETIN 727-53-0182, IS NOT DAMAGED. THE CRACK WILL BE STOP DRILLED AND A REPAIR DOUBLER INSTALLED.