As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSPECTION, FOUND THE TRAILING EDGE WEDGE ON THE NR 4 SLAT DELAMINATED IN THE UPPER SKIN. THERE IS A PREVIOUS REPAIR DOUBLER THAT MEASURES 2 INCHES FORE/AFT AND 10 INCHES WIDE, INSTALLED IN THE DAMAGED REGION. REPAIRED TRAILING EDGE WEDGE IN ACCORDANCE WITH B757 SRM 51-70-10.