As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1904 - LEADING EDGE FLAPS TRANSIT LIGHT ILLUMINATED DURING FLAP EXTENSION NR 3 SLAT NOT FULLY EXTENDED. UPON FURTHER EVALUATION FOUND THE NR 3 SLAT INBOARD MAIN TRACK DOWNSTOP ASSEMBLY FAILED. REPLACED & ADJUSTED NR 3 SLAT ASSEMBLY & OPS TEST GOOD IAW B737 AMM 27-81-21 & 27-88-00.