As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT WING UPPER TRAILING EDGE SILL ARC0839-1 WAS FOUND CORRODED A VARIOUS LOCATIONS DURING PROCCESS OF GETTING OK TO INSTALL BY W.C. 000589 STEP 7. REMOVED DAMAGED SILL, INSTALLED NEW FABRICATED SILLS AND SPLICED/REPAIRED AT XOSP 623 PER SRM 57-50-02-2R FIG 201 REPAIR 10 DWG ARC0839