As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(LOG 4325642) DURING LANDING APPROACH AFTER SELECTING FLAPS 1 @ 240 KNOTS, RECEIVED A LE FLAPS TRANSIT LIGHT WITH ILLUMINATION OF THE #4 LE FLAP TRANSIT LIGHT. DECLARED EMERGENCY AND LANDED WITHOUT INCIDENT. MAINTENANCE R/R #4 LE FLAP EXTEND SENSOR PER B737 AMM 27-88. ALL OPS NORMAL.