A nacelle arrangement comprising: an inner fixed structure; a thrust reverser blocker door; a thrust reverser link arm coupled to the thrust reverser blocker door; a fitting coupled to the thrust reverser link arm, the fitting being attached to a proximal surface of the IFS, the fitting comprising: a base plate configured to be fastened to the proximal surface of the IFS; a first wall extending orthogonally from the base plate; a second wall extending orthogonally from the base plate; and a pin extending orthogonally from the first wall and extending orthogonally from the second wall, wherein a first end of the thrust reverser link arm is rotatably coupled to the fitting and a second end of the thrust reverser link arm is rotatably coupled to the thrust reverser blocker door; and characterised in that: the first end of the thrust reverser link arm comprises a removable member, the removable member having an inner surface comprising a semi-circle, and the first end of the thrust reverser link arm having an inner surface comprising a semi-circle, wherein the inner surfaces (326,328) are configured to seat against the pin, and the removable member and link arm form an aperture configured to circumferentially surround the pin in response to the removable member and link arm being in an installed position relative to one another. an inner fixed structure; a thrust reverser blocker door; a thrust reverser link arm coupled to the thrust reverser blocker door; a fitting coupled to the thrust reverser link arm, the fitting being attached to a proximal surface of the IFS, the fitting comprising: a base plate configured to be fastened to the proximal surface of the IFS; a first wall extending orthogonally from the base plate; a second wall extending orthogonally from the base plate; and a pin extending orthogonally from the first wall and extending orthogonally from the second wall, wherein a first end of the thrust reverser link arm is rotatably coupled to the fitting and a second end of the thrust reverser link arm is rotatably coupled to the thrust reverser blocker door; and characterised in that: the first end of the thrust reverser link arm comprises a removable member, the removable member having an inner surface comprising a semi-circle, and the first end of the thrust reverser link arm having an inner surface comprising a semi-circle, wherein the inner surfaces (326,328) are configured to seat against the pin, and the removable member and link arm form an aperture configured to circumferentially surround the pin in response to the removable member and link arm being in an installed position relative to one another. a base plate configured to be fastened to the proximal surface of the IFS; a first wall extending orthogonally from the base plate; a second wall extending orthogonally from the base plate; and a pin extending orthogonally from the first wall and extending orthogonally from the second wall, wherein a first end of the thrust reverser link arm is rotatably coupled to the fitting and a second end of the thrust reverser link arm is rotatably coupled to the thrust reverser blocker door; and characterised in that: the first end of the thrust reverser link arm comprises a removable member, the removable member having an inner surface comprising a semi-circle, and the first end of the thrust reverser link arm having an inner surface comprising a semi-circle, wherein the inner surfaces (326,328) are configured to seat against the pin, and the removable member and link arm form an aperture configured to circumferentially surround the pin in response to the removable member and link arm being in an installed position relative to one another.