What was found
DURING A SCHEDULED INSPECTION AT AERO CORP IN LAKE CITY, FL, THE FOLLOWING WAS FOUND, LONGERON 30 BETWEEN STATION 544-564 HAS A 5 INCH CRACK. REMOVE LONGERON FOR CRACK FABRICATED LONGERON AND SPLICE, DRILL AND DEBURRED. HOLD IN LONGERON SPLICE PART. INSTALL LONGERON SPLICE IAW DC-9 SRM 53-00, 53-02. LONGERON SPLICE FABRICATED FROM 7075-T7351 (2.375 BY .710). FABRICATED LONGERON FROM 7075-T651 (28 INCH BY .760 BY 2.260) ALL NEW PARTS FABRICATED IAW DC-9 SRM 53-02 PAGE 35. (M)