What was found
DURING A SCHEDULED INSPECTION AT AERO CORP IN LAKE CITY, FL, THE FOLLOWING WAS FOUND DURING A RIG OF THE CATWALK A CRACK WAS FOUND ON INTERCOSTAL AT STATION 1151. LOCATED RIGHT SIDE BELOW THE CATWALK CABLE CONTROL ARM. REMOVED AND REPLACED INTERCOSTAL STATION 1151 IAW DC-9 SRM 51-30-5, 51-30-2, 51-30-5. REMOVED AFT AIR STAIR WALL PANEL, STAIR. TORQUE TUBE, CONTROL VALVE, ACTUATOR, AND HYDRAULIC LINES, FOR FOM OF S/M REPAIR. REINSTALLED THE ABOVE NR NR 027N1-1411/69576 ITEMS IAW DC-9 MM 52-63-2, 53-20-6. (M)