What was found
CRACK DAMAGE ON RT NR 7 HOLE WHEN PERFORMING SB 747-53A2390 AT STA 1480 LONGERON EXTENSION FIG. ACCOMPLISHED EI T2018A07M-4573 REV 0. O/S DAMAGE HOLE NR 7 TO 0.531" IAW EO 4453A874 REV 2. REMOVED & INSTALL LONGERON FIG FOR NDT INSP IAW SRM 51-40-02, 51-40-04 REV 40 AND DWG 65B15254 SH3 REV D, 65B15255 SH2 REV B. CRACK BE CLEARED REF JC ATTACHED TO SHEET NO 0158060. EI T2018A07M-4573 REV 0 ATTACH TO NRC 638. OPS CHECK GOOD.