As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR TURNBACK DUE TO NR 1 ENGINE OVERHEAT LIGHT ILLUMINATED AFTER TAKEOFF FROM BWI (NOTE ANY EPR SETTING ABOVE 1.75 CAUSED THE LIGHT TO RE-ILLUMINATE). AIRCRAFT MADE AN UNEVENTFUL LANDING. REMOVED AND REPLACED 13TH STAGE FUEL HEAT DUCTING PER BOEING MM. RAN ENG AT HIGH POWER. NO FAULTS NOTED. PERFORMED INSP PER BOEING MM. NO DAMAGED NOTED.