What was found
DURING FURTHER EVALUATION FOLLOWING PREVIOUSLY REPORTED DAMAGE A TERTIARY FRACTURE WAS FOUND ON THE FORWARD SPAR CAP, HORIZONTAL FLANGE, WING STA 143.5. THE FRACTURE WAS VISUALLY IDENTIFIED AND CONFIRMED WITH EDDY CURRENT. AN INTERNAL VISUAL EXAMINATION IDENTIFIED THE AFT HORIZONTAL FLANGE AND VERTICAL FLANGE HAD ALSO BEEN FRACTURED. THE AFT FLANGE IS FRACTURED APPROXIMATELY .750 INCHES, PROPAGATING AFT TOWARD THE FLANGE END. THE VERTICAL FLANGE FRACTURE PROPAGATED THROUGH THE FILLET RADIUS UP TO THE FIRST HORIZONTAL ROW OF HI-LOK PINS. THE FRACTURE LENGTH IS APPROXIMATELY ONE INCH. FRACTURES WERE CONFIRMED WITH EDDY-CURRENT SURFACE SCAN.