As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLT 2578 THE CREW REPORTED THE AIRCRAFT REQUIRED A SIGNIFICANT AMOUNT OF LEFT TRIM TO COUNTER A DISTINCT RIGHT ROLL. MAINTENANCE INSPECTED AND ADJUSTED THE LEFT AND RIGHT AILERON NEUTRAL RECOVERY UNIT. OPERATIONAL CHECKS WERE GOOD.