Sean Cunningham's BoI stated that there was no Safety Case for the ejection seat he died in. That meant by extension that his aircraft was unairworthy. Thus all Hawks were also unairworthy then. Subsequently the T1's were to be grounded but the Reds' T1A's are to continue flying. Of course, the MOD avoids mention of the A word at all times, so is the Hawk still unairworthy? By the same token the Nimrod was officially airworthy until the MOD grounded them all and then said that it wasn't. I don't query that this fatal accident happened with the aircraft in an irrecoverable stall on short finals leading to the death of its rear seat passenger, but was it airworthy?