Why is there a "explosion" button on a civilian aircraft?


XPilot
 
Why is there a "explosion" button on a civilian aircraft?
Source
Why is there a explosion button on a civilian aircraft? - Airplane, IL-18, Aviation, Explosion, Air defense, Longpost
Why is there a explosion button on a civilian aircraft? - Airplane, IL-18, Aviation, Explosion, Air defense, Longpost

Aviation Explosion IL-18 Air defense Airplane
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