What was found
DURING CRUISE, THE NR 1 ENGINE FIRE WARNING LIGHT AND BELL CAME ON. THE FIRE WARNING LIGHT WENT OUT AND THE BELL STOPPED RINGING. THE CREW TESTED THE SUCCESSFULLY TESTED THE SYSTEM AND PERFORMED A PRECAUTIONARY ENGINE SHUTDOWN, AFTER ONE HOUR MORE OF FLIGHT TIME THE FIRE WARNING LIGHT ILLUMINATED AND THE BELL SOUNDED, THE CREW DISCHARGED BOTH FIRE BOTTLES. THE AIRCRAFT LANDED WITHOUT INCIDENT. (K)