What was found
BWI - FL250, ON CLIMB-OUT OF BWI, THE NR 1 ENGINE OVERHEAT LIGHT ILLUMINATED. CAPTAIN BROUGHT POWER BACK TO IDLE AND LGIHT EXTINGUISHED. FLIGHT RETURNED TO FIELD AT BWO WITH NR 1 ENGINE AT IDLE. CAPTAIN DID DECLARE AN EMERGENCY. FLIGHT LANDED WITHOUT FURTHER INCIDENT. THE NR 1 ENGINE WAS NOT SHUT DOWN IN FLIGHT. MAINTENANCE FOUND THE NR 1 ENGINE FUEL HEAT MANIFOLD ASSY HAD BLOWN. LOWERED NR 1 ENGINE TO GAIN ACCESS TO MANIFOLD. REPLACED MANIFOLD. REINSTALLED ENGINE. OPERATIONAL CHECK AND LEAK CHECK GOOD. (M)