Method or restoring turbine vane attachment systems in a turbine engine

A method of repairing a turbine vane attachment system, comprising:

• removing a first half of a combustion turbine case to provide access to inner aspects of the combustion turbine case and removing stationary turbine vanes and rotatable turbine blades from the combustion turbine case so that a generally curved track is attachable to a second half of the combustion turbine case without removing a rotor assembly;
• attaching the generally curved track formed from a plurality of curved tracks to the second half of the combustion turbine case 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 with a transport system formed from a drive motor, a shaft extending from the drive motor, and at least one wheel attached to the shaft;
• rotating the milling cutter to prepare the worn portion of the turbine vane attachment system for material addition;
• moving the at least one movable carriage assembly along the generally curved track while the milling cutter is in contact with an adjacent turbine vane attachment system;
• 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.