As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RH SLAT TRACK #4 UPPER AT AFT ROLLER AND LOWER AFT ROLLER HAS CORROSION. "M" PROVIDED TO ASSIST WITH LOCATION. REF AA WORK CARD NUMBER 5742-01028. EVIDENCE OF PREVIOUS REWORK IS PRESENT. LIASON ENGINEERING WILL BE REQUIRED. ADDITIONAL ENGINEERING DOCUMENTATION IS REQUIRED PRIOR TO FURTHER FLIGHT. REPAIRED RH SLAT TRACK #4 UPPER LOWER PER ERA 607541-14AD REV B & PRI REV 0 MATCH. (LP# 0118776)