What was found
NR 2 ENG SHUTDOWN FOR LOSS OF OIL QTY. OIL PRESS DROPPED. OIL TEMP STABLE. SHUTDOWN NR 2 ENG. WINDMILL OIL PRESS DROPPED & QTY INCREASED. TEMP STABLE. NO WINDMILLING PRESS. LOW PRESS LIGHT ILLUM. LANDED W/OUT INCIDENT. R&R NR 2 ENG, OPS & LEAK CHK GOOD. ACFT RTS. AN FITTING & FLARE OF TUBE INCOMPATIBLE. OIL LINE CLAMP LOOSE. FORWARD OIL TANK MOUNT LOOSE. BORESCOPE REVEALED HALF OF A HPT BLADE MISSING. LOOSE HARDWARE CAUSED BY CORE VIBRATIONS (N2). ENG HAS BEEN RETURNED TO VENDOR FOR REPAIR & ROOT CAUSE ANALYSIS OF BLADE FAILURE. OVERTEMP ANALYSIS RESULTS NEG. ENG BEYOND REPAIR. METALLURGICAL EVALUATION REPORT, HPT BLADE FAILED IN THERMAL FATIGUE MODE DUE TO SEGREGATION OF TITANIUM-HAFNIUM DURING CASTING.