Bad records aren't supposed to be ignored. They are supposed to be looked at by a human who can determine what to do. Failing the way NATS did means that all f

Bad records aren't supposed to be ignored. They are supposed to be looked at by a human who can determine what to do. Failing the way NATS did means that all future flight plan data including for planes already in the sky are not longer being processed. The safer failure mode was definitely to flag this plan and surface to a human while continuing to process other plans.