Patent ID: 8347498

Claim:
A method for repairing a guide vane segment of a gas turbine, wherein the guide vane segment has a plurality of radially or predominantly radially oriented guide vanes, a radially inner shroud and a radially outer shroud, the inner and outer shrouds each being connected to the guide vanes, the method comprising: determining a number of irreparable guide vanes of said guide vanes in said guide vane segment, the guide vane segment including a circumferential center; determining if the irreparable guide vanes are situated outside of the circumferential center of the guide vane segment in a first segment half; performing further steps when said irreparable guide vanes are situated outside of the circumferential center of the guide vane segment in the first segment half, the further steps including: counting a number of guide vane positions beginning with the guide vane position associated with the irreparable guide vane situated closest to the circumferential center and ending with the guide vane position associated with a guide vane at the circumferential end of the first segment half; joining a number of undamaged and/or repairable replacement guide vanes to a circumferential end of a second segment half of the guide vane segment, said number of undamaged and/or repairable replacement guide vanes being equal to the counted number of guide vane positions; and separating the guide vanes associated with the counted number of guide vane positions from the first segment half, the separated vanes including the irreparable guide vane or vanes.