As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 3231, CREW REPORTED THAT DURING TAKEOFF THEY RECEIVED AN ATTCS NO MARGIN WARNING. TAKEOFF ABORTED AT LOW SPEED AND NO ENGINE PARAMETERS WERE EXCEEDED. AIRCRAFT REMOVED FROM SERVICE. PERFORMED ENGINE RUNS IAW FIM 73-75-00-810-846 AND MM 71-00-00. NO ISSUES OR EXCEEDANCES WERE OBSERVED IAW ETN EM-76-004. AIRCRAFT RETURNED TO SERVICE.