As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED NR 1 ENGINE FLAMED OUT AT F/L .350 OAT -59 DEGREES CELSIUS, DURING CYCLING OF NR 1 CROSSFEED. ACCOMPLISHED FUEL TANK TRANSFER CHECKS - ALL NORMAL. INSPECTED INLET/TAIL PIPE NR 1 ENGINE - NO DAMAGE NOTED. REPLACED NR 1 ENGINE FUEL FILTER PRECAUTIONARY - NO FOREIGN MATERIAL. RAN ENGINE - NO LEAKS. NORMAL OPERATION.