What was found
FLT 2151 - BWI-MKE - DURING TAKEOFF, WHEN THE A/C REACHED ABOUT 40 KNOTS THERE WAS INDICATION OF ALTERNATE ANTI-SKID. THE CREW ABORTED THE TAKEOFF CLEARED THE MESSAGE AND TRY AGAIN ONLY TO ABORT THE SECOND ATTEMPT. THE CREW CONSULTED MX A THIRD ATTEMPT OF TAKEOFF WAS SUCCESSFUL. AT ARRIVAL IN MKE, THE ANTI-SKID CONTROL UNITS WERE SWAPPED FROM THE ALTERNATE TO THE NORMAL FOR TROUBLESHOOTING. THE NEXT DAY 10/15/2002 MAINTENANCE HAD A NORMALANTI-SKID DEGRADE. THE ASCU WAS REPLACED WITH NO FURTHER DISCREPANCIES. (M)