What was found
MAIN CABIN FWD WET AREA INTERCOSTAL BETWEEN STA 277 AND STA 294.5 RBL 12' CRACKED ; MAIN CABIN FWD WET AREA INTERCOSTAL BETWEEN STA 277 AND STA 294.5 BL 0 CRACKED / [01] REMOVED DAMAGED INTERCOSTAL AT MAIN CABIN FWD WET AREA BETWEEN STA 277 AND STA 294.5 RBL 12'; AS PER B737-7; SRM 51-40-02-0G-0.; [02] VERIFIED STEP 1 OK TO INSTALL INTERCOSTAL; [03] INSTALLED INTERCOSTAL AT MAIN CABIN FWD WET AREA STA 277 AND STA 294.5 RBL 12. IAW B 737-700 SRM 51-40-02-0G-0; [04] CORRECTION FOR STEP3 AND DWG # 141A5410; [05] VERIFIED STEPS 3 AND 4