What was found
DURING C-CHECK INSPECTION, FOUND LT WING NR 2 SLAT ACTUATOR MOUNT BOLTS, (3 OF 4) SHEARED. FOUND O/B TORQUE TUBE RESTING ON TORQUE TUBE GUIDE. REPLACED MOUNT BOLTS IAW MM 27-81-21, REPLACED TORQUE TUBE IAW MM 27-81-18. PERFORMED NDT OF SLAT ACTUATOR MOUNT BRACKET AND ACTUATOR ATTACHMENT TO FRONT SPAR, NO DEFECTS NOTED IAW NON DESTRUCTIVE TECH MANUAL 51-00-00 PART 6. OPERATIONAL CHECKS GOOD IAW MM 27-81-00. REF GAMCO NRC NR 1020, 1040 AND 1041 FOR DETAILS. FOUND DURING SCHEDULED C-CHECK INSPECTION AT GAMCO, INC.