What was found
ENGINE NR 1 FIRE DETECT FAIL MASTER CAUTION EICAS MESSAGE INTERMITTENTLY, OPS CHECK OF FIRE DETECTION SYSTEM OPS CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ENGINE NR 1 FIRE DETECT FAIL MASTER CAUTION EICAS MESSAGE INTERMITTENTLY, OPS CHECK OF FIRE DETECTION SYSTEM OPS CHECK GOOD.