Summary

A Jeju Air Boeing 737-800 crashed at Muan International Airport, South Korea, killing 179 people, with only two crew members surviving. The black boxes stopped recording four minutes before the crash.

Authorities are investigating the cause of the malfunctioning black box. They suspect a bird strike, as feathers were found in one engine, and video footage confirmed a bird impact. However, the exact cause of the crash remains elusive.

Investigators are probing why the landing gear wasn’t deployed, the role of power failure in missing black box data, and the construction of the airfield wall the plane hit.

  • Enoril
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    22 hours ago

    You have normally 2 segregated electrical system (1 & 2) with, for each system, several sub-segregation (like primary, secondary, essential, secours with bus bars, contactors that can cut some non-essential systems depending on rules or switch in the overhead panel) and several sources of power (engines, apu, batteries, sometime rat).

    Black boxes don’t have battery (to dangerous, the battery could destroy the recordings when damaged and that would also require specific maintenance) but normally they have several power source. Loosing power like that is strange and could indicate a fire or a maintenance problem (on board batteries should be able to work for at least 40min without engine… but they had a running engine as far as i know… that doesn’t make any sense).

    APU can be run while flying, you must be below a certain flight level to use it (<FL100?).