As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS MAX POWER TAKEOFF LINED UP ON RUNWAY, STARTED ROLL, LEFT ENGINE PRODUCED MAX POWER AND RIGHT LAGGED, PLANE VEER RIGHT SIDE OF RUNWAY. LEFT ENGINE 98 N1 RIGHT ENGINE WAS 45 N1. (TOGA ENGAGED). MAINTENANCE ACCOMPLISHED TEST 8 ACCELERATION CHECK IAW AMM 71-00-00-700-824. ACCELERATION WITHIN LIMITS.