As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 7718 ORF TO ORD CAPTAIN REPORTS ON SHORT FINAL, RECEIVED AMBER -FAIL- BOX ACROSS N1 INDICATOR. DISCONNECTED AUTO THROTTLE; ENGINE INDICATIONS WERE N1 AND N2 SPOOL DOWN, DECREASE IN ITT AND FUEL FLOW. WML INDICATION APPEARED INDICATING RELIGHT ATTEMPT. ENGINE RE-LIT WITHIN 30-45 SECONDS AND ALL ENGINE PARAMETERS RETURNED TO NORMAL. ORD MAINTENANCE REMOVED AND REPLACED THE NR 1 ENGINE FMU. OPS CHECK GOOD.