As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"LE SLAT ASYM" EICAS MSG AND "LEADING EDGE" CAUTION LIGHT CAME ON IN CRUISE. NO FLAP MOVEMENT WITH HANDLE, ALTERNATE FLAPS WORKED FINE. SUPPLEMENTAL DATA UPDATE LEADING EDGE SLAT LOSS SENSOR SWITCH FAILED.REPLACED RIGHT INBOARD LEADING EDGE LOSS SENSOR SWITCH S10338.