What was found
RIGHT PYLON OVERHEAT WARNING INDICATION ON TAKE-OFF. PILOT REDUCED POWER ON ENGINE TO IDLE AND LIGHT EXTINGUISHED. AIRCRAFT RETURNED TO ORIGINATION POINT. MAINTENANCE REPLACED DAMAGED HP FIREWALL BLEED AIR SEALS. PROBLEM HAS RE-OCCURRED AND IS UNDER INVESTIGATION.CONTINUED 03.22.2004: REPLACED SWIVEL DUCT ASSEMBLY, 4 E-SEALS, 2 EACH PYLON OVERHEAT SENSORS AND MADE PERMANENT REPAIR TO THE R/H ENGINE EXHAUST INNER BYPASS DUCT. GROUND RUNS AND TEST FLIGHT CONDUCTED SATISFACTORILY. AIRCRAFT HAS MADE SUBSEQUENT FLIGHTS WITHOUT FURTHER DISCREPANCIES.