As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD - FLT 4230 - DURING TAKEOFF ROLL, CREW NOTED T/REV DISAGREE MSG ON EICAS. CREW ABORTED TAKEOFF AND RETURNED TO GATE SAFELY. NO FURTHER INCIDENTS WERE REPORTED. SYSTEM WAS LATER MEL''D. MAINTENANCE ADJUSTED NR 2 UPPER SHELL ACTUATOR ROD IAW ENGINEERING ORDER EB-78-00-011. OPERATIONAL CHECK WAS GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (M)