Patent ID: 8074866

Claim:
A method of repairing a turbine vane attachment system, comprising: attaching a generally curved track to a combustion turbine case between the combustion turbine case and a rotor assembly without removing the rotor assembly; attaching at least one movable carriage assembly movably coupled to the generally curved track, wherein the at least one movable carriage assembly includes at least one component drive system comprising a spindle coupled to the movable carriage and adapted to receive material processing implements for restoring a hook fit of the turbine vane attachment system, a spindle drive device in communication with the at least one spindle that is configured to rotate the spindle, a milling cutter coupled to the spindle for removing material from a hook fit of the turbine vane attachment system, and a weld head attached to the at least one moveable carriage assembly; positioning the milling cutter in contact with a worn portion of a turbine vane attachment system; rotating the milling cutter to prepare the worn portion of the turbine vane attachment system for material addition; adding material to the worn portion of the turbine vane attachment system using the weld head; rotating the milling cutter to remove some of the material added to the turbine vane attachment system to place the turbine vane attachment system within designed tolerances.