What was found
AIRCRAFT RETURNED TO PLATFORM DURING TAXI, WHEN SLATS WERE EXTENDED AUTO SLAT FAIL LIGHT TURNED ON. SYSTEM WAS CHECKED WITH OTHER COMPUTERS, CONFIRMING THE FAIL IN BOTH AUTO SLAT ACTUATORS. ACTUATORS WERE REPLACED IAW MM 27-80-08 TESTS CORRECT. FURTHER, THEN THE AIRCRAFT WAS DISPATCHED ART INOP LIGHT TUNED ON FAIL REPORT WAS DEFERRED IAW MEL 73-8.