A gas turbine engine, comprising: an annular gaspath extending around a central axis, the annular gaspath defined between a first casing and a second casing, the first casing defining pockets; and a variable guide vane assembly having: variable guide vanes circumferentially distributed about a central axis, the variable guide vanes having airfoils extending between first and second pivot members (42f, 42g) at respective first and second ends of the airfoils, the variable guide vanes rotatable about respective spanwise axes; and a plurality of vane bushing assemblies, each vane bushing assembly comprising: a bushing having an annular body extending circumferentially around a bushing axis, the annular body defined radially between a first circumferential surface and a second circumferential surface relative to the bushing axis, the first circumferential surface sized to be rollingly engaged by a vane of the variable guide vane assembly; and a resilient member extending around the bushing axis of the bushing and engaged to the second circumferential surface, wherein the bushings are sized to be received within the pockets of the first casing, and the first pivot members of the variable guide vanes are rollingly engaged to the bushings, characterised in that: radial gaps are present between the bushings and peripheral walls of the pockets; and the resilient members are configured to dampen movements of the bushings relative to the pockets. an annular gaspath extending around a central axis, the annular gaspath defined between a first casing and a second casing, the first casing defining pockets; and a variable guide vane assembly having: variable guide vanes circumferentially distributed about a central axis, the variable guide vanes having airfoils extending between first and second pivot members (42f, 42g) at respective first and second ends of the airfoils, the variable guide vanes rotatable about respective spanwise axes; and a plurality of vane bushing assemblies, each vane bushing assembly comprising: a bushing having an annular body extending circumferentially around a bushing axis, the annular body defined radially between a first circumferential surface and a second circumferential surface relative to the bushing axis, the first circumferential surface sized to be rollingly engaged by a vane of the variable guide vane assembly; and a resilient member extending around the bushing axis of the bushing and engaged to the second circumferential surface, wherein the bushings are sized to be received within the pockets of the first casing, and the first pivot members of the variable guide vanes are rollingly engaged to the bushings, characterised in that: variable guide vanes circumferentially distributed about a central axis, the variable guide vanes having airfoils extending between first and second pivot members (42f, 42g) at respective first and second ends of the airfoils, the variable guide vanes rotatable about respective spanwise axes; and a plurality of vane bushing assemblies, each vane bushing assembly comprising: a bushing having an annular body extending circumferentially around a bushing axis, the annular body defined radially between a first circumferential surface and a second circumferential surface relative to the bushing axis, the first circumferential surface sized to be rollingly engaged by a vane of the variable guide vane assembly; and a resilient member extending around the bushing axis of the bushing and engaged to the second circumferential surface, wherein the bushings are sized to be received within the pockets of the first casing, and the first pivot members of the variable guide vanes are rollingly engaged to the bushings, characterised in that: a bushing having an annular body extending circumferentially around a bushing axis, the annular body defined radially between a first circumferential surface and a second circumferential surface relative to the bushing axis, the first circumferential surface sized to be rollingly engaged by a vane of the variable guide vane assembly; and a resilient member extending around the bushing axis of the bushing and engaged to the second circumferential surface, wherein the bushings are sized to be received within the pockets of the first casing, and the first pivot members of the variable guide vanes are rollingly engaged to the bushings, characterised in that: radial gaps are present between the bushings and peripheral walls of the pockets; and the resilient members are configured to dampen movements of the bushings relative to the pockets.