What was found
FWD CABIN BETWEEN STA 328 AND STA 344 WL 208.1 INTERCOSTAL AT LBL 45 IS CRACKED AS MARKED. 124-052 / [01] REMOVED AT INTERCOSTAL FWD CABIN BETWEEN STA 328 AND STA 344 AT LBL 45 IAW B 737-700 SRM 51-40-02-0G-0;[02] VERIFIED AND INSPECTED STEP #1.;[03] LOCATED AND DRILLED INTERCOSTAL AT FWD CABIN BETWEEN STA 328 AND STA 344 AT LBL 45 IAW B 737-700 SRM 51-40-05-0G-0;[04] VERIFIED AND INSPECTED STEP#3; LOCATED AND DRILLED INTERCOSTAL AT FWD CABIN BETWEEN STA 328 AND STA 344 AT LBL 45;[05] OK TO INSTALL NEW INTERCOSTAL PART.;[06] INSTALLED INTERCOSTAL AT FWD CABIN BETWEEN STA 328 AND STA 344 AT LBL 45 IAW B 737-700 SRM 51-40-02-0G-0;[07] FINAL REMOVED AND INSTALLED NEW INTERCOSTAL AT FWD CABIN BETWEEN STA 328 AND STA 344 AT LBL 45 IAW B 737-700 SRM 51-40-02-0G-0;[08] VERIFIED AND INSPECTED STEP#5; #6 AND #7.;[09] INSPECTED;[10] (AMENDING STEP 7) REMOVED AND INSTALLED NEW INTERCOSTAL AT FWD CABIN BETWEEN STA 328 AND STA 344 AT LBL 45 IAW B 737-700 SRM 51-40-02-0G-0 AND DWG #141A5410. PO#1772343.