What was found
FWD WET AREA STATION 312 - 328 INTERCOSTAL CRACKED RBL 30 ; / [01] PERFORMED HFEC AND CONFIRMED CRACK ON UPPER SECTION OF INTERCOSTAL AT FWD WET AREA BETWEEN STA 312 AND STA 328 AT RBL 30 IAW NDTM PART 6;51-00-00 PROCEDURE 23. CRACK LENGTH : 0.787' ( AT 12 AND 6 O'CLOCK POSITION GOING THROUGH FASTENER HOLE).; [02] REMOVED AND REPLACED INTERCOSTAL AT STA 312- STA 328 RBL 30 IN REFERENCE B-737 700 SRM 51-40-02-0G-0 ; SRM 51-40-05-0G-0.; [03] ADDING DRWG # 141A5400.; [04] VERIFIED STEPS 2 AND 3.