As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L ENGINE FLAMEOUT CAUTION MESSAGE IN FLIGHT, N1 AND N2 BOTH DECREASED MOMENTARILY THEN CAME BACK TO NORMAL INDICATIONS L ITT EXCEED C MESSAGE FOLLOWED / COMPLIED LH ENGINE BORESCOPE INSP. OF THE STAGE 1 AND 2 HPT, COMBUSTION LINER AND TURBINE NOZZLE IAW CRJ 900 AMM 72-44-00-290-801 AND 72-51-01-290-801. NO DEFECTS NOTED AT THIS TIME. REMOVED AND REPLACED LH FUEL METERING UNIT IAW CRJ 900 AMM 73-21-03-000/400-801. LEAK AND OPS CHECK GOOD.