What was found
DURING CLIMB-OUT FROM TOL TO TOL-BDL-EWR, THE NR 3 PYLON STRUT OVERHEAT LIGHT ILLUMINATED IN THE COCKPIT. THE CREW TURNED OFF THE BLEED AIR AND REDUCED THE POWER TO THE NR 3 ENGINES. THE CREW RETURNED TO TOLEDO AND MADE A ROUTINE LANDING. FOUND 8TH STAGE CHECK VALVE LEAKING. REMOVED AND REPLACED VALVE SEALS. RAN ENGINE WITH NO LEAKS NOTED. STRUT OVERHEAT OPS CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE. (X)