As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING TAKEOFF ROLL, A STRONG NOISE WAS HEARD FROM ONE ENGINE ACCOMPANIED BY ACFT YAW TO THE LT. THE TAKEOFF WAS ABORTED AT A SPEED OF 60 TO 70 KTS AND THE ACFT RETURNED TO THE RAMP. EXTENSIVE TROUBLESHOOTING IS ON-GOING AND GROUND RUNS COULD NOT REPRODUCE THE PROBLEM.