As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: CENTER BAY IN LEFT WHEEL WELL KEEL BEAM CENTER SECTION HAS A CRACK. CRACK 3/8 OF AN INCH LON AT BOTTOM OF CHEM-MILL. CRACK LOCATED AT STA 663 AND LEFT BUTT LINE 36. INSTALLED EXTERNAL DOUBLER ON UPPER LEFT PRESSURE DECK PER SRM 57-10-10-2R-3.