As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRE EICAS STATUS LEFT ENGINE. FIRE/OVERHEAT DETECTION CARD FAULT OR FAILURE, OR AIMS LOSS OF ARINC 629/429. REMOVED AND REPLACED LT ENGINE FIRE DETECTION CARD IAW AMM 26-11-03. PERFORMED ENGINE FIRE DETECTION OPERATIONAL TEST IAW AMM 26-11-00. TEST PASSED. NO FURTHER MESSAGES.