What was found
LAX - FLT 6 - AFTER TAKEOFF, CREW RECEIVED THE EICAS MESSAGE: 'LE SLAT ASYM.' FLIGHT RETURNED TO LAX AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE BITE CHECKED ALL THREE FSEU'S AND OPERATED THE SLATS. NO PROBLEMS WERE FOUND. FLIGHT TOOK OFF AGAIN AND RETURNED TO LAX FOR SAME PROBLEM. MAINTENANCE INSPECTED THE LEFT AND RIGHT SLAT LOSS SWITCHES, ADJUSTED THE RIGHT SWITCH, AND SWAPPED THE NR 1 AND NR 3 FSEU'S. THE AIRCRAFT WAS TEST FLOWN AND THE PROBLEM DID NOT RETURN (4-16-97).