As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF ROLL AT BELOW 80KTS THE FLIGHT CREW HAD AN A SYS FLIGHT CONTROL LOW PRESSURE LIGHT ILLUMINATE CAUSING THEM TO ABANDON THE TAKEOFF. AFTER THE ACFT SAFELY RETURNED TO THE GATE MX CARRIED OUT THE FOLLOWING TASKS. FIM 27-21, TASK 813 FINDING THE LOW PRESSURE LIGHT WARNING SWITCH ON FLIGHT CONTROL HYD MODULE A TO BE AT FAULT. R & R SWITCH IAW AMM 27-09-61 AND ACFT WAS RETURNED TO SERVICE.