As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING TAKEOFF GROUND ROLL PILOTS NOTED THAT THE RIGHT HAND ENGINE POWER ROLLED BACK, THE TAKEOFF WAS ABORTED. MAINTENANCE TROUBLESHOOTING FOUND ENGINE DRIVEN FUEL PUMP TO BE AT FAULT FOR THE POWER ROLL BACK DUE TO PUMP OUTPUT PRESSURE LOW. FUEL PUMP P/N 3070850-63 WAS REMOVE WITH HONEYWELL REPAIRED SERVICEABLE PUMP INSTALLED. AIRCRAFT RETURNED TO SERVICE.