What was found
IN LEVEL FLIGHT, NR 1 FIRE LIGHT ILLUMINATED AND AUDIO SOUNDED. WAS UNABLE TO EXTINGUISH LIGHT OR TURN HORN OFF. SECURED NR 1 ENGINE. APPROXIMATELY 3 MINUTES LATER, LIGHT WENT OUT AND HORN WENT OFF. UPON FINAL APPROACH, RESTARTED NR 1 ENGINE, FIRE LIGHT DID NOT ILLUMINATE. THE A/C WAS INSPECTED AND FOUND IN THE ELECTRICAL COMPARTMENT THERE WERE NUMEROUS WIRES THAT HAD CHAFED. THE WIRES WERE REPAIRED AND THE A/C WAS OPS CHECKED WITH NO FURTHER DEFECTS NOTED.