As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE SPOOL UP TIME LAGS BEHIND RIGHT ENGINE CAUSING UNNECESSARY YAW TENDENCIES IN FLIGHT. ALSO CAUSE LOSS OF DIRECTIONAL CONTROL ON "THURST REVERSER" DEPLOYMENT. W N1 MATCHED, THE N2 FOR RIGHT ENGINE IS LOWER BY 25%. THRUST LEVERS ARE NEARLY IMPOSSIBLE TO SYNCH DU. PERFORMED ACCELERATED/DECELERATED CHECK IAW AMM 71-00-00. ALL CHECKS FOUND TO BE WITHIN LIMITS. AIRCRAFT OK FOR SERVICE.