What was found
LAS - ATO - 85-95 KT REJECTED TAKEOFF AT 28C ON RUNWAY 25R DUE TO A FLIGHT CONTROL MASTER CAUTION WARNING INDICATION. MAINTENANCE PERFORMED STEPS 15 THRU E-2 AS OUTLINED IN THE B737-300 AMM 27-31-00-5 AND TESTED THE DIFFERENTIAL PRESSURE SWITCH WITH NO FAULTS OR DISCREPANCIES NOTED. AS A PRECAUTIONARY MEASURE THE ELEVATOR FEEL COMPUTER WAS REPLACED IAW AWA TASK CARD R6C27010. A SUPPLEMENT WILL BE SUBMITTED AND PART CONDITION WILL BE UPDATED UPON RECEIVING THE COMPONENT TEAR DOWN REPORT FROM THE VENDOR PERFORMING THE REPAIR ON THE ELEVATOR FEEL COMPUTER.