Unfort the PAF has not and probably will not release the details but I think it's been confused with F-7PG
However the main and most important thing is that the pilots safe
In the one and only JF-17 crash in 2011 we lost one of the best aviators and forerunners of the JF-17 programme Squadron Leader Muhammad Hussain with him went all the knowledge too which he has accumulated on the fighter
As the operating envelope of the JF-17 fighter is expanded and is pushed and numbers rise crashes are inevitable
But the JF-17 has one of the best ejection seats in the world built by Martin Baker