A gas turbine engine, comprising: a case surrounding a main body that is disposed about a central longitudinal axis, the main body having a first wall that extends between a first wall first end and a first wall second end, a second wall that extends between a second wall first end and a second wall second end, and an intermediate wall disposed between the first wall and the second wall and extends between an intermediate wall first end and an intermediate wall second end; and a bleed valve system, comprising: a retaining ring that is disposed between the first wall and the intermediate wall, the retaining ring having a first portion that defines a plurality of retaining ring apertures and a second portion that extends from the first portion towards the intermediate wall second end, and a metering ring that abuts the first portion, the metering ring defining a plurality of metering ring apertures, characterised in that: a pocket is defined between the intermediate wall second end, the second portion, and the first portion, and in that the bleed valve system further comprises: a biasing member disposed in the pocket, the biasing member being arranged to urge the metering ring against the retaining ring. a case surrounding a main body that is disposed about a central longitudinal axis, the main body having a first wall that extends between a first wall first end and a first wall second end, a second wall that extends between a second wall first end and a second wall second end, and an intermediate wall disposed between the first wall and the second wall and extends between an intermediate wall first end and an intermediate wall second end; and a bleed valve system, comprising: a retaining ring that is disposed between the first wall and the intermediate wall, the retaining ring having a first portion that defines a plurality of retaining ring apertures and a second portion that extends from the first portion towards the intermediate wall second end, and a metering ring that abuts the first portion, the metering ring defining a plurality of metering ring apertures, characterised in that: a pocket is defined between the intermediate wall second end, the second portion, and the first portion, and in that the bleed valve system further comprises: a biasing member disposed in the pocket, the biasing member being arranged to urge the metering ring against the retaining ring. a retaining ring that is disposed between the first wall and the intermediate wall, the retaining ring having a first portion that defines a plurality of retaining ring apertures and a second portion that extends from the first portion towards the intermediate wall second end, and a metering ring that abuts the first portion, the metering ring defining a plurality of metering ring apertures, characterised in that: a pocket is defined between the intermediate wall second end, the second portion, and the first portion, and in that the bleed valve system further comprises: a biasing member disposed in the pocket, the biasing member being arranged to urge the metering ring against the retaining ring. a pocket is defined between the intermediate wall second end, the second portion, and the first portion, and in that the bleed valve system further comprises: a biasing member disposed in the pocket, the biasing member being arranged to urge the metering ring against the retaining ring.