As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ENGINE START, RIGHT ENGINE SURGE AND EGT NOT GOING OVER 500. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE REMOVED AND REPLACED MAIN ENGINE CONTROL (MEC) IAW AMM 73-21-01 . REF. FIM TASK 73-11-FT 812,811 PERFORMED ENGINE RUNS IAW AMM 71-00-00. OPS CHECK GOOD. NO DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE.