PTDI hands over first of nine Bell 412EPI helicopters to Indonesian Army 13 January 2021 by Gabriel Dominguez State-owned aircraft manufacturer PT Dirgantara Indonesia (PTDI) has delivered the first of nine Bell 412EPI multirole medium helicopters on order for the Indonesian Army (Tentara Nasional Indonesia-Angkatan Darat or TNI-AD). PDTI announced on 30 December 2020 that it delivered the first of nine Bell 412EPI multirole helicopters ordered for the Indonesian Army in December 2018. (PTDI) The company said in a statement posted on Twitter that the rotorcraft, which was handed over to the service on 29 December 2020, is part of a USD183 million contract signed with the Ministry of Defense in Jakarta in December 2018.