American Airlines Flight 587
Eight seconds later, the stall warning sounded on the cockpit voice recorder. At the moment the stabilizer separated from the aircraft the plane pitched downwards.  As the pilots struggled to control the aircraft, it went into a flat spin. The resulting aerodynamic loads sheared both engines from the aircraft seconds before impact. The engines landed several blocks north and east of the main wreckage site. Losing the engines cut off power to the FDR at 9:16:00, while the CVR cut off at 9:16:15 moments before impact.