As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: CRACK INDICATION FOUND ON RADIOUS OF HORIZONTAL FLOOR BEAM 4 BACKSIDE OF THE SPAR VERTICAL STRINGER AT FR36. CRACK L:0.395 INCH. MAINTENANCE PERFORMED PERMANENT REPAIR ON CENTER WING BOX POSITION (4)-Y254 ON SPAR VERTICAL STRINGER FR36 ON CENTER FUSELAGE IAW EA 366683 PART C AND DWG R57112154.