As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON T/O ROLL, RT N1 DROPS FROM 86 PERCENT TO 50 PERCENT. TAKEOFF ABORTED. MX INSP REVEALED FOD DAMAGES ON FAN AND COMPRESSOR. A CIRCULAR CUT WAS FOUND ON NR 4 WHEEL TIRE. IT IS SUSPECTED THAT AN FOREIGN OBJECT EMBEDDED IN THE NR 4 WHEEL TIRE RELEASED FROM IT INTO THE RT ENGINE BEING CHANGED. FAN AND COMPRESSOR DAMAGED BY FOD.