What was found
(CAN) AN ENGINE FIRE WARNING INDICATION WAS REPORTED ON BOTH ENGINES DURING A TRAINING FLIGHT IN WHICH THE CREW APPEARS TO PERFORMING A MISS APPROACH. THE CREW REDUCED POWER AND THE FIRE WARNING WENT OUT AND THE CREW PERFORM A UNEVENTFUL LANDING. THE FIRE WARNING SYSTEM WAS TESTED AND FOUND TO SERVICEABLE. ACFT THEN FLEW TO HOME BASE WITH NO ISSUES AN LANDED UNEVENTFULLY.