As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SFO-ANC - EN ROUTE, THE NR 1 LEADING EDGE DEVICE IN TRANSIT LIGHT ILLUMINATED. CREW FOLLOWED COCKPIT OPERATING PROCEDURE AND DIVERTED TO SEA. MAINTENANCE REPLACED THE LEADING EDGE FLAP DEVICE ACTUATOR AND PERFORMED FUNCTIONAL CHECK. CHECK WAS NORMAL AND AIRCRAFT RETURNED TO SERVICE.