high credibilityThe Aviation Herald2015Cockpit door lock and the Lubitz case: CVR transcript analysisSimon HradeckyOpen sourceCited by Germanwings 9525 deliberate crash (Mar 24 2015)
high credibilityThe Aviation Herald2005HAF F-16 intercept: pilot accounts and reportSimon HradeckyOpen sourceCited by Helios Airways 522 cabin decompression / ghost flight (Aug 14 2005)