What was found
DURING APPROACH TO ISP, NR 2 ENGINE FIRE WARNING LIGHT FLASHED TWICE. AIRCRAFT LANDED WITHOUT INCIDENT. FALSE FIRE WARNING SUSPECTED. INSPECTED NR 2 ENGINE FIRE LOOPS, NO DISCREPANCIES FOUND AND NO EVIDENCE OF ENGINE FIRE. INSPECTED NR 2 ENGINE FIRE PROTECTION AIRCRAFT WIRING AND FOUND CHAFED WIRE. REPAIRED CHAFED WIRE. OPERATIONAL CHECK AIRCRAFT FIRE WARNING SYSTEM SATISFACTORY FOR RETURN TO SERVICE.