A planet gear housing assembly in an epicyclical gear assembly, comprising: an aft planet carrier assembly comprising an aft flange defining a central aperture and a plurality of gear shaft pockets positioned about the circumference and radially outward of said central aperture, each pocket having a cylindrical wall; a forward planet carrier assembly comprising a forward flange defining a central aperture and a plurality of gear shaft pockets positioned about the circumference and radially outward of said central aperture, each pocket having a cylindrical wall; a plurality of planet gears (32, 105) each comprising a cylindrical gear shaft having a forward end portion disposed in a gear shaft pocket of said forward planet carrier assembly coaxially with the cylindrical wall of said pocket, an aft end portion disposed within a gear shaft pocket of said aft planet carrier assembly coaxially with the cylindrical wall of said pocket, and one or more gears carried by said shaft between said forward and aft end portions; a bearing assembly comprising a bearing (119, 121) disposed over at least a portion of one of the aft end portion and the forward end portion of said gear shaft; and a stiffening member positioned between said aft planet carrier assembly and said forward planet carrier assembly, said stiffening member comprising an annular body defining a central aperture; the planet gear housing assembly characterised in that: the bearing assembly further comprises an annular spring disposed over at least a portion of said bearing (119, 121); and the stiffening member further comprising a plurality of radial flanges extending radially outward from said annular body, each of said plurality of radial flanges partly defining a gear-facing surface. an aft planet carrier assembly comprising an aft flange defining a central aperture and a plurality of gear shaft pockets positioned about the circumference and radially outward of said central aperture, each pocket having a cylindrical wall; a forward planet carrier assembly comprising a forward flange defining a central aperture and a plurality of gear shaft pockets positioned about the circumference and radially outward of said central aperture, each pocket having a cylindrical wall; a plurality of planet gears (32, 105) each comprising a cylindrical gear shaft having a forward end portion disposed in a gear shaft pocket of said forward planet carrier assembly coaxially with the cylindrical wall of said pocket, an aft end portion disposed within a gear shaft pocket of said aft planet carrier assembly coaxially with the cylindrical wall of said pocket, and one or more gears carried by said shaft between said forward and aft end portions; a bearing assembly comprising a bearing (119, 121) disposed over at least a portion of one of the aft end portion and the forward end portion of said gear shaft; and a stiffening member positioned between said aft planet carrier assembly and said forward planet carrier assembly, said stiffening member comprising an annular body defining a central aperture; the bearing assembly further comprises an annular spring disposed over at least a portion of said bearing (119, 121); and the stiffening member further comprising a plurality of radial flanges extending radially outward from said annular body, each of said plurality of radial flanges partly defining a gear-facing surface.