What was found
CLIMBING THROUGH FL 240, FELT A STRONG JOLT AND LOUD BANG, THE RT ENGINE EPR AND N1 BEGAN TO DETERIORATE, BUT ALL ELSE WAS NORMAL. ENGINE SHUT-DOWN BEFORE LANDING. FOUND METAL IN T/P. CORRECTIVE-REPLACED NR 2 ENGINE AND T/R. REROUTED TO SHOP. SUPPLEMENT: (03-07-96). SHOP EXAMINATION SHOWED 3RD STAGE TURBINE INNER AIR-SEALING ANTI-ROTATION PIN (QTY-1) MISSING. PIN DAMAGED TURBINE BLADES, RESULTING IN TURBINE FAILURE.