Pakistan has agreed to extend the deadline for the delivery of 30 T-129 ATAK attack helicopters by one year, to allow Turkish Aerospace Industries (TAI) to work around a US veto on the re-export of their turboshaft engines. TAI in 2018 signed a $1.5 billion contract to provide an initial batch of 30 T129 ATAK attack helicopters to Pakistan, assuming the US government would allow the re-export of their US-made L HTEC T800-4A turboshaft engines. However, the US is not allowing these engines to be re-exported to Pakistan and TAI is now looking to Tusas Engine Industries, its sister company, to develop a new, indigenous engine to replace the T800.