As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RH OUTBOARD LWR SIDE OF SLAT TRACK #4 HAS EVIDENCE OF ROLLER WEAR AND PREVIOUS REWORK REF AA5742-01028-02B. LIAISON ENGINEERING SUPPORT REQUIRED BEFORE FLIGHT. WEAR MARKS MEETS PRI STEP 9 CRITERIA. NO FURTHER REWORK REQUIRED. (LP# 0151210)