What was found
A 4 INCH LONG CRACK WAS FOUND EXTENDING FROM THE AFT EDGE OF LOWER SKIN PANEL AT IWS 450. THE CRACK RAN FWD, TERMINATING UNDER THE AFT EDGE OF THE LOWER SPAR CAP. THE CRACK WAS ROUTED OUT OF THE WING SKIN PANEL. THE CUTOUT WAS REPAIRED WITH THREE EXTERNAL ALUMINUM DOUBLERS AND TWO INTERNAL ALUMINUM STRAPS. THE REPAIR WAS ACCOMPLISHED PER ER/A 365053-14, REV A.