As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LH SLAT TRACK #4, RACK TOOTH #1 AND #2 HAS EVIDENCE OF CORROSION AFT PREVIOUS REWORK REF 5742-01028-02A. LIAISON ENGINEERING REQUIRED BEFORE FURTHER FLIGHT. COMPLIED WITH ERA 622578-14AD REV A AND PRI 622578-14AD REV O MATCHES. (LP# 0940739)