  In this paper, we provide a self-contained investigation of the Weyl double
copy in the Newman-Penrose formalism. We examine the Weyl double copy
constraints for the general asymptotically flat solution in the Newman-Unti
gauge. We find that two transparent solutions of the asymptotic Weyl double
copy constraints lead to truncated solutions for both linearized and Einstein
gravity theory where the solutions are in the manifest form of Petrov type N or
type D in the Newman-Unti gauge.
