A conduit for bleed air in a gas turbine engine

A cowl cavity 26 is defined between a core engine cowl 25 and an engine inner casing 24. A core fairing 34 is provided at the forward end of the engine inner casing 24 and has a radially outer surface 36 which, with the cowl 25, provides an airwashed surface of a bypass duct 22. A plenum 44 is provided within the cowl cavity 26 and receives air from bypass flow B through openings 46 in the surface 36. Conduits 48 extend from a partition 42 defining the plenum 44 to distribute air to locations and components within the engine.