What was found
FLT 2297 - YYZ-MKE - TAKEOFF ROLL THE CREW GOT A RT BLEED SOV CAS MESSAGE, THEY CONSULTED WITH MX AND WHERE ABLE TO GET IT TO CLEAR. THE CREW ATTEMPTED TAKEOFF AGAIN BUT AGAIN RECEIVED A RT BLEED SOV CAS MESSAGE. THE A/C RETURNED TO THE GATE. OUTSTATION MX CLEANED THE CONNECTOR FO THE LOW PRESSURE PRSOV. WITH NO FURTHER DISCREPANCIES NOTED THE A/C WAS RETURNED TO SERVICE. (M)