A unexplained Boeing 737 jet operated by K2 Airways disappeared shortly after leaving Sharjah Airport on July 7 2026. Contact was cut off just after departure while the plane carried mail and goods on board. Search crews today look along the coast near Karachi. Early radio checks showed the pilots fighting to control the aircraft. Investigators say no signals were received before it fell out of view. Officials alert finding the rubble will take time but it's the only way to understand what failed.