What was found
DURING A SCHEDULED INSPECTION, TECH NOTICED 2 RIVETS MISSING FROM THE LT DORSAL SKIN AFT OF THE NACA SCOOP. THE LOWER FASTENER HOLE ALSO APPEARED TO HAVE A CRACK ABOUT AN INCH LONG AND MOVING TOWARDS THE SECOND FASTNER HOLE. UPON DISASSEMBLE WE ALSO FOUND CRACKS IN THE CORNERS OF BRACKET, PN 6512072-17 ON BOTH LT AND RT SIDES. WE ALSO FOUND THE DORSAL FRESH AIR DUCT HAD PULLED AWAY FROM THE DORSAL FIN AND HAD ALLOWED AIR PRESSURE TO EXPAND THE DORSAL AND CAUSED THIS DAMAGE. AN SCR HAS BEEN SUBMITTED TO MFG UNDER SCR 590694.