What was found
PILOT REPORTED SLIGHT VIBRATION IN FLAPS. UPON INSP, BEFORE THE NEXT FLIGHT, THE RT AILERON WAS FOUND TO HAVE SIGNIFICANT CRACKING IN MULTIPLE AREAS WITH A PORTION OF THE T/E (APROX 18 INCHES LONG AND 1 INCH FWD) BLOWN OUT. THIS AILERON HAD 118.4 HOURS SINCE IT HAD BEEN SIGNIFICANTLY REPAIRED WITH NEW SKIN SECTIONS. DISASSEMBLY OF THE SKINS RESULTED IN IDENTIFYING AT LEAST 2 NOSE RIBS WHICH WERE ALSO FOUND CRACKED. THE BELOW LISTED ITEMS WERE REPLACED NEW AT TIME OF REPAIR WITH THE SKINS. THE FOLLOWING PARTS: WERE FOUND DEFECTIVE. C3WF3-5 W/O-54317/1 MFG 20-SEP-08, C3WF3-6 WO-51151/1 MFG 08-JUL-08, C3WA4-11 WO-61731/1 MFG 05-FEB-08. ALL 4 SKIN SECTIONS (C3WA4-11) WERE REPLACED AT TIME OF THE SIGNIFICANT REPAIR.