Compressor Stator Vane Shim Removal

In Situ Blending Services

IAW TIL 1562, Advanced Turbine Support will inspect the forward compressor case for the presence of stator vane segment shims. If shims are found to be protruding from the compressor case, several risk mitigation re-inspection interval recommendations may be made. The re-inspection intervals will be determined by the amount the shim material is protruding from the compressor case. The intervals become more frequent as the amount of protruding shim material increases. Once the shim is protruding 0.250 inch or more, we recommend our in-situ removal of the shim. If the shim cannot be completely removed from the compressor case, we will blend/remove the protruding shim material flush to the case.