In October 2011 , the head of the investigation team , Feridun Seren , was arrested along with six other defendants in connection with the disputed 2009 Medair Bell 206 crash which killed BBP leader Muhsin Yazıcıoğlu – in whose investigation he was also involved – on grounds of allowing the flight recorders to be tampered with , obscuring evidence and creating bogus protocols
2009 Medair Bell 206 crash
2009 Medair Bell 206 crash
Atlasjet Flight 4203