As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE OF THE AIRCRAFT IN WHICH THE RIGHT FUEL TANK WAS OPENED UP, A CRACK WAS FOUND IN THE AFT SPAR. THE CRACK EXTENDS FROM WS 33.0 TO 34.375 AND IS APPROX 1.375 INCHES LONG. THE CRACK IS LOCATED IN THE UPPER BEND RADIUS OF THE AFT SPAR.