Turbine shroud with split pin mounted ceramic matrix composite blade track

A turbine shroud assembly adapted for use with a gas turbine engine, the shroud assembly comprising

• a carrier shaped to include an outer wall that extends circumferentially at least partway about the axis, a first support wall that extends radially inward from the outer wall, a second support wall spaced axially from the first support wall that extends radially inward from the outer wall, and a third support wall located axially between the first support wall and the second support wall that extends radially inward from the outer wall,
• a seal segment shaped to include a runner that extends circumferentially partway around an axis to define a gas path boundary of the shroud assembly, a first mount flange that extends radially outward from the runner arranged between the first support wall and the third support wall of the carrier, and a second mount flange that extends radially outward from the runner arranged between the second support wall and the third support wall of the carrier, and
• a mount assembly including at least one split-pin fastener that couples the seal segment with the carrier, the at least one split-pin fastener being made up of (1) a first pin that extends axially through the first mount flange of the seal segment into both the first support wall and the third support wall of the carrier, and (2) a second pin circumferentially aligned with the first pin that extends axially through the second mount flange of the seal segment into both the second support wall and the third support wall of the carrier, wherein the first pin is in direct confronting relation with the second pin while remaining separate from the second pin.

A method comprising

• providing a carrier, a seal segment, and a mount assembly, the carrier including an outer wall that extends circumferentially at least partway about an axis, a forward support wall that extends radially inward from the outer wall, an aft support wall spaced axially from the forward support wall that extends radially inward from the outer wall, and a central support wall located axially between the forward support wall and the aft support wall that extends radially inward from the outer wall, the seal segment including a runner that extends circumferentially partway around an axis, a forward mount flange that extends radially outward from the runner, and an aft mount flange that extends radially outward from the runner, and the mount assembly including a first split-pin fastener and a second split-pin fastener that each include a forward pin and an aft pin,
• locating the seal segment adjacent to the carrier so that the forward mount flange is between the forward support wall and the central support wall of the carrier and the aft mount flange that extends radially outward from the runner arranged between the aft support wall and the central support wall of the carrier,
• coupling the seal segment to the carrier with the first split-pin fastener by inserting the forward pin of the first split-pin fastener through the forward mount flange of the seal segment into both the forward and central support walls of the carrier and inserting the aft pin of the first split-pin fastener through the aft mount flange of the seal segment into both the aft support wall and the central support wall of the carrier so that the aft pin of the first split-pin fastener is circumferentially aligned with and aft of the forward pin of the first split-pin fastener, and
• coupling the seal segment to the carrier with the second split-pin fastener by inserting the forward pin of the second split-pin fastener through the forward mount flange of the seal segment into both the forward and central support walls of the carrier at a location spaced apart circumferentially from the first split-pin fastener and inserting the aft pin of the second split-pin fastener through the aft mount flange of the seal segment into both the aft and central support walls of the carrier so that the aft pin of the second split-pin fastener is circumferentially aligned with and aft of the forward pin of the second split-pin fastener.