Even today there is an aerodynamic phenomenon that is horrifying to most of airplane pilots; the compressor stall. This phenomenon can be triggered by a simple incident such as a bird strike.
source/image(PrtSc): Learn Engineering
A compressor stall can lead to a total loss of engine thrust, severe vibrations and loud bangs in the engine, it can even have a catastrophic effect such as complete engine failure. Let’s see what causes compressor stall and how to avoid it./Learn Engineering
Jet engine ingestion is extremely serious due to the rotation speed of the engine fan and engine design. As the bird strikes a fan blade, that blade can be displaced into another blade and so forth, causing a cascading failure.
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Bird strikes happen most often during takeoff or landing, or during low altitude flight.However, bird strikes have also been reported at high altitudes, some as high as 6,000 to 9,000 m above the ground. Bar-headed geese have been seen flying as high as 10,175 m above sea level./wikipedia
