Following the cancellation of the Wamira, HdH resumed production of complete aircraft in 1987 after it was selected to build a version of the Pilatus PC-9 under licence for the RAAF. HdH was responsible for final assembly of 65 aircraft (known as the 'PC-9/A'), initially from kits supplied by Pilatus (17 aircraft), but with the components for the final 48 examples produced by HdHV and GAF (which by this time had been privatised and renamed Aerospace Technologies of Australia) (ASTA). Two Swiss-built PC-9s were already delivered in 1987. The last Australien-made PC-9/A was delivered in May 1992.