As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CENTER OF CHANNEL IS BOWED TOO MUCH KICKING THE AFT END UPWARD CAUSING NO EDGE DISTANCE FOR THE RIVETS IN THE CENTER AREA APPROXIMATELY 10" FROM AFT EDGE TO APPROXIMATELY 29" FROM THE AFT EDGE. RIVETS IN BETWEEN THESE TWO AREAS HAVE NO EDGE DISTANCE.