As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF, THE RIGHT ENGINE SPOOLED UP SLOWER THAN THE LEFT ENGINE. A POP WAS HEARD AND THE TAKEOFF WAS ABORTED. EGT STAYED AT APPROXIMATELY 535, OTHER PARAMETERS WERE NORMAL. AIRCRAFT RETURNED TO THE GATE. ENGINE CHANGE IS IN PROGRESS.