What was found
SCREW TO HOLD FAIRING BETWEEN WING AND TIP TANK TOO LONG AND POSSIBLE PENETRATING / RUBBING ON FUEL TANK. THE INNER AERODYNAMIC FAIRING BETWEEN TIP TANK AND UPPER SURFACE OF WING HAS A TINNERMAN NUT PLATE TO CONNECT TO ANOTHER FAIRING. SCREWS IN THIS NUT PLATE ARE USUALLY TOO LONG, TOUCH THE TIP TANK AND VIBRATION BEGINS A WEAR POINT. SEE PICTURES /USERS/BRENNEMAN/DESKTOP/IMG_4417.JPG/USERS/BRENNEMAN/DESKTOP/IMG_4418.JPG