In many accidents, air, etc. usually, the skeleton and the rest of the components internal to a large degree the damage you see and the only part of the plane that stays intact., the units of memory resistant (CSMU), which is related to the device, the FDR and CVR the aircraft. Device CSMU by cylindrical shape is a large device recording data is connected. This vehicle to be built in such a way that is against the extreme heat and fall hard, and the pressures of the top of the multi-tone water-resistant. In the sample, the magnetic tape this section inside a rectangular box was put.