As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAUTION MESSAGE "ENG 1 FIRE DET FAIL" IN FLIGHT INTERMITTENT NO UNUSAL PARAMETERS OR VISUAL INDICATIONS OBSERVED-C/A-INTERROGATED CMC PER AMM 45-45-00 FOUND CODES 26110014UT1 AND 26110020UT1 PERFORMED FIM 26-11-00 AND AMM 31-41-06.TRANSITORY CONDITION OF GENETIC I/O MODULE.OPS GOOD.