A cascade assembly of a nacelle for a turbofan engine comprising: a one-piece cascade fixed to a translating sleeve constructed and arranged to move between forward and aft positions along a centerline (C); a stationary structure; and a hook device including a first catch fixed to the stationary structure and a second catch fixed to the one-piece cascade , and wherein the first catch mates to the second catch for translating load when the cascade assembly is in a deployed state and the translating sleeve is in the aft position , characterised in that : the hook device includes a resiliently compliant member disposed between the first and second catches; or the first catch includes a first portion projecting radially outward from the fixed structure and a second portion projecting axially forward from the first portion , the first and second portions defining at least in-part a channel , and wherein the second catch includes a first segment projecting radially inward from the one-piece cascade and a second segment projecting axially aft of the first segment such that the second segment is disposed in the channel when the cascade assembly is in the deployed state , the hook device includes a resiliently compliant member disposed axially between the first portion and the first segment . a one-piece cascade fixed to a translating sleeve constructed and arranged to move between forward and aft positions along a centerline (C); a stationary structure; and a hook device including a first catch fixed to the stationary structure and a second catch fixed to the one-piece cascade , and wherein the first catch mates to the second catch for translating load when the cascade assembly is in a deployed state and the translating sleeve is in the aft position , characterised in that : the hook device includes a resiliently compliant member disposed between the first and second catches; or the first catch includes a first portion projecting radially outward from the fixed structure and a second portion projecting axially forward from the first portion , the first and second portions defining at least in-part a channel , and wherein the second catch includes a first segment projecting radially inward from the one-piece cascade and a second segment projecting axially aft of the first segment such that the second segment is disposed in the channel when the cascade assembly is in the deployed state , the hook device includes a resiliently compliant member disposed axially between the first portion and the first segment . the hook device includes a resiliently compliant member disposed between the first and second catches; or the first catch includes a first portion projecting radially outward from the fixed structure and a second portion projecting axially forward from the first portion , the first and second portions defining at least in-part a channel , and wherein the second catch includes a first segment projecting radially inward from the one-piece cascade and a second segment projecting axially aft of the first segment such that the second segment is disposed in the channel when the cascade assembly is in the deployed state , the hook device includes a resiliently compliant member disposed axially between the first portion and the first segment . <EOS>