What was found
RT ENGINE CONTROL EICAS MESSAGE AFTER ENGINE START. REMOVED AND REPLACED ECU. OPERATIONS CHECKS NORMAL, IAW AMM 73-21-15. PERFORMED ENGINE RUN-UP, OPERATIONS CHECKS NORMAL. NO FAULTS NOTED, IAW AMM 71-00-00.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RT ENGINE CONTROL EICAS MESSAGE AFTER ENGINE START. REMOVED AND REPLACED ECU. OPERATIONS CHECKS NORMAL, IAW AMM 73-21-15. PERFORMED ENGINE RUN-UP, OPERATIONS CHECKS NORMAL. NO FAULTS NOTED, IAW AMM 71-00-00.