| 摘要 |
A method of repairing a damaged abradable coating ( 48 ) on a surface ( 46 ) of a shroud ( 44 ) in an assembled gas turbine engine ( 10 ) comprises inserting a boroscope ( 60 ) through an aperture ( 52 ) in the casing ( 50 ) of the compressor ( 26 ) of the gas turbine engine ( 10 ). The boroscope ( 60 ) is arranged to carry a conduit ( 62 ). The boroscope ( 60 ) and hence the conduit ( 62 ) are directed to the damaged abradable coating ( 48 ) on the surface ( 46 ) of the shroud ( 44 ). A liquid abradable glue ( 64 ) is supplied through the conduit ( 62 ) and the liquid abradable glue ( 64 ) is directed onto the surface ( 46 ) of the shroud ( 44 ) in the compressor ( 26 ) of the gas turbine engine ( 10 ) to repair the damaged abradable coating ( 48 ).
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