As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 1179813) DURING HCK AT QRO, WHILE PERFORMING A ZONAL INSPECTION OF THE KEEL BEAM FROM STA 540 TO STA 727 PER WC 5300-2539, CORROSION WAS FOUND AFFECTING THE DOUBLER INSTALLED BETWEEN STA 500H TO 540 & S-26L TO S-26R, SUBSEQUENTLY AN INTERNAL INSPECTION WAS CARRIED OUT AND THE INTERNAL SURFACE OF THE SKIN AND BULKHEAD WERE FOUND CORRODED. MAINTENANCE REPAIRED PER ERA 628368-14.