As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ENROUTE, FLIGHT NOTIFIED MAINTENANCE CONTROL THAT THE LT ENGINE HAD ROLLED BACK TWICE FOLLOWED BY EICAS MESSAGE "ENG 1 TLA FAIL" ALONG WITH "ELEV THR COMP FAIL". THE ENGINE STABALIZED AFTER THE AUTO THRUST SYS WAS TURNED OFF AND THE FLIGHT CONTINUED. IAW EMM 73-00-00-PB-301 AND IAW EMM 73-00-00-810-803, NR 1 ENG FADEC UNIT REPLACED.