What was found
TAKE-OFF WAS ABORTED WHEN THE AIRCRAFT FAILED TO ROTATE AT VR. THE TAKE-OFF WAS ABORTED AT 102KTS AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED THE AIRCRAFT AND CLEANED RESIDUAL TYPE IV DEICE FLUID FROM AIRCRAFT. THE AIRSPEED INDICATORS AND THE ELEVATOR CONTROL SYSTEM SYSTEM WERE CHECKED FOR PROPER OPERATION. ALL OPERATIONAL CHECKS WERE GOOD AND THE AIRCRAFT WAS RETURNED TO SERVICE.