What was found
EN ROUTE GOING THROUGH FL 370 IN SMOOTH AIR, CREW HEARD ENGINE SURGE AND NOTED PARAMETER DECREASE. AIR START ATTEMPTED UNSUCCESSFULLY. FLIGHT DIVERTED TO ORLANDO. DISASSEMBLY REVIEW BY P & W ENGINEERING HAS LED TO A PRELIMINARY CONCLUSION OF A SINGLE 5TH STAGE COMPRESSOR BLADE FAILURE (FRACTURE). THE FAILED MATERIAL (INCLUDING 5TH DISK) HAS BEEN DELIVERED TO PRATT & WHITNEY ENGINEERING. ENGINE TT, 8,484.5; TC 2,575; TSO, 151.33 HOURS; CSO, 91.