What was found
(CAN) ENG FLAMED OUT AT 13,000 FT DURING DESCENT WHEN THEY TRIED TO REAPPLY HIGHER POWER & RESTARTED SUCCESSFULLY AFTER FOLLOWING PROCEDURES. ACRFT LANDED. MX DISPATCHED, EVALUATION CARRIED OUT IAW GE MM. INTERNAL ENG INSPECTED NO FAULT FOUND, EXTERNAL INSPECT CARRIED OUT NO FAULT FOUND. RUNS CARRIED OUT AT HIGH POWER, AIR VALVE LITE COMING ON MEANING NOT ENOUGH AIRFLOW TO THE ANTI-ICING SYSTEM. AFTER TROUBLESHOOTING FOR THE BLEED AIR VALVE TO BE DEFECTIVE. VALVE REPLACED, DEFECT REPAIRED. THIS ALONE COULD HAVE NOT CAUSED THE FLAME OUT. AFTER DISCUSSION WITH CREW THEY USED QRH PROCEDURE FOR AIR VALVE LIGHT ON, BUT AUTOCOARSEN SWITCH ON AT ALL TIMES