What was found
ON TWO DIFFERENT OCCASION DURING THE TAKEOFF ROLL BETWEEN 80-120 KTS, THE PLANE WAS VERY SQUIRRELY AND STARTED MOVING TO THE RIGHT OF CENTER LINE A LOT AND THE LEFT WING WOULD RISE UP. THIS HAPPENED WITH THE CAPTAIN AND THE FO FLYING AT TWO DIFFERENT TIMES. THE SECOND TIME WAS WITH CALM WINDS. STEERING NOT AFFECTED BELOW THOSE SPEEDS WHILE TAXIING OUT. REMOVED FROM SERVICE. INTERROGATED CMC, NO RELATED FC. PERFOMRED GVI OF EXTERNAL, REF AMM 05-50-00-200-801A. NO OBVIOUS DEFECTS. LOWERED SLATS/FLAPS FOR GVI, NO ABNORMAL MOVEMENT OR PLAY IN ATTACHMENTS PERFORMED FOMC FOR AILERONS, ELEVATOR, KK& RUDDER. NO DEFECTS NOTED PERFORMED SPOILER OPS TEST, REF AMM 27-60-00-710-801A, OPS TEST GOOD. SPOILERS DEPLOYED/RETRACTED NORMALLY. PERFORMED GVI OF SPOILERS IN BOTH DEPLOYED AND RETRACTED POSITIONS, NO DEFECTS NOTED OPERATIONAL CHECK PASSED. RETURNED TO SERVICE. COULD NOT DUPLICATE.