Abstract: Gas turbine airfoil assemblies and methods of repair are provided. In this regard, a representative method includes: separating the airfoil from the platform; forming a depression in the platform, the depression being sized and shaped to receive a replacement airfoil; and affixing the replacement airfoil within the depression such that the replacement airfoil is attached to the platform.

Abstract: Gas turbine airfoil assemblies and methods of repair are provided. In this regard, a representative method includes: separating the airfoil from the platform; forming a depression in the platform, the depression being sized and shaped to receive a replacement airfoil; and affixing the replacement airfoil within the depression such that the replacement airfoil is attached to the platform.

Abstract: A method for repairing a cantilevered stator vane includes removing a damaged portion leaving a remaining vane portion. A supplemental airfoil portion is then selected and is attached to the remaining vane portion to provide a repaired cantilevered stator vane.

Abstract: A gas turbine engine having coannular components 22, 30 includes means for receiving and retaining a replaceable brush seal 60 so that the seal bristles impede the leakage of air through an intercomponent gap 41. In the preferred embodiment one of the components is a hollow, cylindrical barrel 30 comprising upper and lower barrel segments and the receiving and retaining means includes a retainer 52. The retainer cooperates with the barrel to define a groove 56 within which the brush seal is trapped radially and axially. The brush seal slides circumferentially within the groove to facilitate seal installation and removal.

Abstract: A method for improving effectiveness of a labyrinth seal 40 between coannular components 22, 30 in a turbine 10 includes reconfiguring one of e components to provide means for receiving and retaining a replaceable brush seal 60 installing the brush seal so that the seal bristles impede the leakage of air through an intercomponent gap 41. In the preferred embodiment the reconfiguring step is applied to a hollow, cylindrical barrel 30 and includes machining the barrel to reduce its axial length and its wall thickness and also includes attaching a retainer 52. The retainer cooperates with the barrel to define a groove 56 within which the brush seal is trapped radially and axially. The brush seal slides circumferentially within the groove to facilitate seal installation and removal. The invention despenses with the need to carry out an expensive and time consuming replacement or renovation of the worn labyrinth seal.