As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PIT - FLT 4157 - DURING TAKEOFF ROLL AT APPROXIMATELY 90 KNOTS, CREW NOTICED LEFT ENGINE NOT MAKING ENOUGH TORQUE. TAKEOFF WAS ABORTED AND AIRCRAFT RETURNED TO THE GATE. PIT MAINTENANCE INSPECTED AIRCRAFT AND FOUND A BROKEN P3 AIR SUPPLY LINE, LEFT ENGINE. REPLACED LINE IAW MM 21-10-00. OPS CHECKED GOOD, AIRCRAFT RETURNED TO SERVICE.