What was found
FWD CABIN INTERCOSTAL BETWEEN STA 344 AND 360 RBL 11 WL 208.1 IS CRACKED. 124-013 / [01] PERFORMED HFEC INSPECTION PER B737 NDT PART 6 51-00-00 PROCEDURE 23; VERIFIED CRACK. CRACK LENGTH 1.500'. TOOL USED OLYMPUS NORTEC 600 B/C 172389; CAL DUE DATE 03/23.;[02] INSTALLED EWIS PROTECTION AT FLOOR STRUCTURE BETWEEN STA344 TO STA 360 AND BETWEEN BL-O TO RBL 30 AS PER B737-7 AMM 20-60-07-913-801;[03] REMOVED INTERCOSTAL BETWEEN STA 344 TO STA 360 AND RBL 11 AS PER B737-7 SRM 51-40-02-0G-0;[04] LOCATED AND OPENED NEW HOLS AT INTERCOSTAL BETWEEN STA 344 TO STA 360 AND RBL 11 AS PER B737-7 SRM 51-40-02-0G-0.;[05] VERIFIED STEP 2;[06] VERIFIED STEPS 3 AND 4;[07] OK TO INSTALL NEW INTERCOSTAL BETWEEN STA 344 TO STA 360 AND RBL 11;[08] INSTALLED NEW INTERCOSTAL BETWEEN STA 344 TO STA 360 AND RBL 11 AS PER B737-7 SRM 51-40-02-0G-0.;[09] REMOVED EWIS PROTECTION BETWEEN STA 344 TO STA 360 AND BETWEEN BL-0 TO RBL 30 AS PER B737-7 AMM 20-60-07-913-801.;[10] VERIFIED STEP 8 - INSTALLED NEW INTERCOSTAL BETWEEN STA 344 TO STA 360 AND RBL 11;[11] VERIFIED STEP 10