Abstract: A resilient component for attachment to a rigid temporary reinforcement structure, and a rigid temporary reinforcement structure for attachment to a resilient component are disclosed. The temporary reinforcement structure having one or more datum attachment features for releasably attaching the temporary reinforcement structure to corresponding datum attachment features of the resilient component, where the datum attachment features and the datum features of the resilient component have a common datum, and the temporary reinforcement structure is configured to rigidly support the resilient component during assembly of the resilient component to a structural assembly.