As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3752 - MISC - DURING APPROACH AT FLAPS 5 LE FLAPS TRANSIT LIGHT ILLUMINATED. LE FLAP TRANSIT EXTINGUISHES AS FLAP HANDLE MOVED BEYOND FLAP 5. EMERGENCY WAS DECLARED. MAINTENANCE REPLACED LE SLAT #1 OUTBOARD SENSOR AS PER B 737 AMM 27-88.. OPERATIONAL TEST OK, AIRCRAFT RETURNED TO SERVICE.