What was found
DURING POST FLIGHT WALK-AROUND, FOUND A HOLE IN NR 2 ENGINE IB EXHAUST STACK. DEMATED POWER SECTION FROM GAS GENERATOR AND DETERMINED THAT POWER TURBINE BLADES WERE BROKE OFF AT THE BLADE ROOT. POWER SECTION HAS INTERNAL DAMAGE. REPLACED RT POWER SECTION MODULE. POWER ASSURANCE RUN AND LEAK CHECK COMPLIED WITH. ROUTED FAILED UNIT FOR FURTHER ANALYSIS AND REPAIR. NOTE: VERIFIED TO BE 2ND STAGE PT BLADE FAILURE. (CLOSED 5/4/05) (K)