What was found
LT ENGINE OVERHEAT EICAS MESSAGE AT FL420, OVERHEAT INDICATION REMAINED WITH THROTTLE CLOSED, BAV CLOSED FOR APPROX 2 MINUTES EXTINGUISHED AND DID NOT REOCCUR AT ANY POWER SETTING. TROUBLESHOT PER FIM 26-11-00 FIG 103. FOUND CLAMPS LOOSE ON IP AND HP BLEED DUCTS AND VALVE 11/2 TURNS. HP SENSE LINE AT HP DUCT AND HI STAGE PILOT LOOSE. NOTING GREY FLASH AT ALL POINTS OF TIGHTENING. OK FOR SERVICE. (M)