What was found
THE STA 1183 BULKHEAD WEB WAS FOUND CRACKED IN TWO LOCATIONS. THE DAMAGE WAS TRIMMED OUT WITH DIMENSIONS OF 2.6250 INCH AT LBL 8, WL 190 AND 8 INCH BY 3.1250 INCH AT LBL 14, WL 173. THE BULKHEAD WEB IS MANUFACTURED FROM 0.050 INCH CLAD 2024-T3. THIS ER/A AUTHORIZES INSTALLATION OF A REPAIR DOUBLER. TPA MTC DISCOVERED AN ADDITIONAL CRACK JUST OUTBOARD OF THE BL ZERO STIFFENER AT APPROXIMATELY WL 170. AS A RESULT, A SINGLE TRIANGULAR CUT-OUT WAS MADE TO INCORPORATE THE ORIGINAL CRACK AT LBL 14 AND THE NEW CRACK DISCOVERED OUTBOARD OF BL ZERO. THE NEW CUT-OUT RUNS FROM APPROXIMATELY LBL 15 TO LBL 4. REPAIRS ERA 303452-14.