As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PWM - FLT 4277 - DURING TAKEOFF, WHEN THE CTOT WAS SWITCHED ON THE RIGHT TORQUE INCREASED BUT THE LEFT DID NOT. TAKEOFF WAS ABORTED AND AIRCRAFT RETURNED TO THE GATE. MAINTENANCE RIGGED THE LEFT ENGINE PCU. SYSTEM GROUND CHECKED GOOD. (M)