As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DURING DESCENT INTO LAS DUE TO A FLIGHT CONTROL FLAPS / SLATS SYSTEM 2 FAULT AND A FLIGHT CONTROL SLATS FAULT. THE AIRCRAFT LANDED SAFELY AT LAS WITHOUT FURTHER INCIDENT AND TAXIED TO THE GATE UNDER ITS OWN POWER. MAINTENANCE FOUND THE RIGHT WING LEADING EDGE SLAT ACTUATOR 6091CM TRIPPED AND REPLACED IT PER AMM 27-84-49.