Airborne noise is not something to be afraid of, especially if you consider that any change is noisy in your own way. However, if you do not hear anything, it’s a sign that the panic is unnecessary.
If suddenly there is a complete silence on the plane, it is a cause for concern. That may mean that both engines on the aircraft have canceled. Even then, you’re not in a worrying situation – even if you do not ride your engines, the plane can travel quite a distance without both engines. Air Transat’s airplane on flight 236 in 2001 was left without two engines during a flight and was forced to land at an airport 100 kilometers away.
A strong impact and a landing blast may mean a cracked tire on the landing wheels, which may be a serious problem.
The sound of an engine that gets louder while you fly relatively close to the ground can mean that a bird was sucked in the engine.
A lightning strike is not dangerous to the plane, and passengers can spot it in the form of a “flash light” and a slight firing of the spacecraft.