What was found
(CAN) SMALL CRACK, APPROXIMATELY 0.750 INCH IN LENGTH WAS DETECTED ON THE LEFT INBOARD FLAP SPAR AT THE INBOARD FLAP TRACK ATTACHMENT POINT ON THE UPPER SKIN FROM THE RIVET. A LARGER CRACK WAS THEN FOUND, APPROXIMATELY 4 TO 6 INCHES IN LENGTH, FURTHER OUTBOARD IN THE UPPER SPAR RADIUS. PART TC: 26,270. AIRCRAFT TT: 14,306 HOURS.