What was found
SLAT FAIL EICAS MESSAGE BEFORE MOVING FLAPS SLAT HANDLE AFTER TAKEOFF. SLATS SHOWED 3 AND FLAPS SHOWED 1. EMERGENCY DECLARED, ON LANDING FLAPS WENT FULL,SLATS STAYED AT 3. R & R RT SLAT 2-3 AND RT SLAT 3-4 SKEW SENSORS IAW AMM 27-83-01. ALSO, R & R OF RT SLAT 2-3 AND SLAT 3-4 SENSOR HARNESSES IAW AMM 27-83-07. NO FAULTS.