I also need to give a little information about this polemics:
The final explanation about engine was made by Prof. Akşit, GM of TEI.
In the TS1400 project, the core engine was ignited in early 2017. More than hundreds of test procedures were successfully passed for 2 years. The 1500HP variant of engine was assambled in 2019 and succesfully worked. Production planning activities have been ongoing since 2019. The first engine for the T-625 multipurpose helicopter will be delivered in 2020 and will make its first flight this year.Of course, the integration of this engine into the Atak helicopter coul be created a delay for Pakistan, but this turboshaft program of TEI is in more forward phase than you think.