What was found
UPON ATTAINING CRUISE ALTITUDE FL 290, ENGINE STALLED AND FIRE WARNING ACTIVATED. DISASSEMBLY INSPECTION REVEALED TWELVE 2ND STAGE TURBINE BLADES BROKEN AT PLATFORM AND AN ADDITIONAL 10 BLADES BROKEN APPROXIMATELY ONE INCH ABOVE PLATFORM. HPT MODULE 851 HOURS/371 CYCLES SINCE REPAIR. FRACTURED BLADES HAVE BEEN FOWARDED TO PRATT & WHITNEY ENGINEERING FOR ANALYSIS.