What was found
WITHIN MINUTES OF DEPARTURE, RIGHT ENGINE FIRE WARNING LIGHT CAME ON. PILOT REPORTED NO FLAMES, DID NOT USE EXTINGUISHER. SHUT DOWN RIGHT ENGINE. NO ABNORMAL ENGINE INSTRUMENTS. AIRCRAFT LAND OVER MAXIMUM LANDING WEIGHT. MAINTENANCE FOUND HEAVY CHAFED SPOT ON FORWARD ENGINE FIRE LOOP, AT A LOOP CLAMP LOCATION. IT APPEARS THAT THE CLAMP CAME LOOSE AND ALLOWED THE LOOP TO CONTACT THE CLAMP BRACKET, REPLACED FORWARD FIRE LOOP.