Gas turbine engine component
A method of assembling a blade outer air seal assembly includes engaging a first blade outer air seal with a first attachment surface on a first attachment body. The first blade outer air seal includes a first attachment body passage for accepting the first attachment body. A second blade outer air seal is engaged with a second attachment surface on the first attachment body. The second blade outer air seal includes a second attachment body passage for accepting the first attachment body. Rotation is prevented of the first attachment body relative to the first blade outer air seal with a first post engaging the first blade outer air seal. Rotation is prevented of the first attachment body relative to the second blade outer air seal with a second post engaging the second blade outer air seal.
1. A method of assembling a blade outer air seal assembly, the method comprising:
engaging a first blade outer air seal with a first attachment surface on a first attachment body, wherein the first blade outer air seal includes a first attachment body passage for accepting the first attachment body;
engaging a second blade outer air seal with a second attachment surface on the first attachment body wherein the second blade outer air seal includes a second attachment body passage for accepting the first attachment body; and
preventing rotation of the first attachment body relative to the first blade outer air seal with a first post engaging the first blade outer air seal and preventing rotation of the first attachment body relative to the second blade outer air seal with a second post engaging the second blade outer air seal,
wherein the first attachment body includes a radially outer surface and the first post and the second post are located on and extend radially outward from the radially outer surface.
2. The method of claim 1 , wherein the first blade outer air seal includes a first base portion extending between a leading edge and a trailing edge, a forward wall and an aft wall extending radially outward from the first base portion to a radially outer portion.
3. The method of claim 2 , wherein the radially outer portion is spaced from the first base portion and at least partially defines the first attachment body passage with the forward wall, the aft wall, and the first base portion.
4. The method of claim 1 , wherein the first post includes a first blade outer air seal guide surface facing a first circumferential direction for engaging the first blade outer air seal.
5. The method of claim 4 , wherein the second post includes a second blade outer air seal guide surface for engaging the second blade outer air seal and the second blade outer air seal guide surface faces a second circumferential direction opposite the first circumferential direction.
6. The method of claim 1 , wherein the first post includes a first blade outer air seal guide surface and the second post includes a second blade outer air seal guide surface.
7. The method of claim 6 , wherein the first attachment surface and the second attachment surface each define an arced surface.
8. The method of claim 1 , comprising anti-rotating the first attachment body relative to an engine static structure with at least one tab extending from an aft hook on the first attachment body.
9. The method of claim 8 , wherein the first attachment surface and the second attachment surface each define an arced surface.
10. The method of claim 1 , wherein the first attachment body includes a pair of aft hooks each including an anti-rotation tab.
11. The method of claim 1 , comprising:
engaging at least one forward hook extending from the radially outer surface on the first attachment body with a static structure; and
engaging at least one aft hook extending from the radially outer surface on the first attachment body with the static structure.
12. The method of claim 11 , wherein the at least one aft hook includes a pair of aft hooks and each of the pair of aft hooks include an axially forward extending tab.
13. The method of claim 12 , wherein the pair of aft hooks each include a forward extending portion and an aft extending portion and the axially forward extending tab extends from a forward edge of the forward extending portion.
14. The method of claim 1 , comprising engaging the second blade outer air seal with a first attachment surface on a second attachment body.
15. The method of claim 14 , comprising:
engaging at least one forward hook extending from a radially outer surface on the second attachment body with a static structure; and
engaging at least one aft hook extending from the radially outer surface on the second attachment body with the static structure.
16. The method of claim 14 , comprising locating a portion of the second attachment body in the second attachment body passage on the second blade outer air seal.
17. The method of claim 16 , comprising locating a portion of the first attachment body in the second attachment body passage on the second blade outer air seal.
18. The method of claim 16 , wherein the second attachment body passage is defined by a forward wall, an aft wall, and a radially outer wall extending from the forward wall to the aft wall.
19. The method of claim 1 , wherein the first attachment body passage is defined by a forward wall, an aft wall, and a radially outer wall extending from the forward wall to the aft wall.