What was found
CRACKED INTERCOSTAL AT PASSENGER CABIN BS380+14 BL0 WL208.<[01] REMOVED PASSENGER CABIN UPPER ANGLE INTERCOSTAL FROM BS380 - BS400; BL 0; PER SRM 51-40-02-0G-0<BR>RECEIVED FROM TOOL ROOM NEW INTERCOSTAL UPPER ANGLE P/N 143A5410-170; LOCATED AND DRILL PER SRM 51-40-05-0G-0 AND BOEING DWG. 143A5400; OK TO INSTALL NEW ANGLE.;[02] UPON FURTHER INVESTIGATION FOUND CRACK TO BE IN UPPER ANGLE INTERCOSTAL.<BR>REMOVED PASSENGER CABIN UPPER ANGLE INTERCOSTAL FROM BS380 - BS400; BL 0; PER SRM 51-40-02-0G-0<BR>RECEIVED FROM TOOL ROOM NEW INTERCOSTAL UPPER ANGLE P/N 143A5410-170; LOCATED AND DRILL PER SRM 51-40-05-0G-0 AND BOEING DWG. 143A5400; OK TO INSTALL NEW ANGLE.;[03] VERIFIED CORRETIVE ACTION STEPS 1&2; OK TO INSTALL GIVEN;[04] INSTALLED PASSENGER CABIN UPPER ANGLE INTERCOSTAL FROM BS380 - BS400; BL 0; WL208; PER SRM 51-40-02-0G-0 AND BOEING DWG. 134A5400.;[05] VERIFIED CORRECTIVE ACTION 4.