Sparks coming from engine on Virgin A340-600
Can anyone answear this question? I was departing Hong Kong the other evening (in the dark) in a Virgin A340-600 when I noticed that the inboard port engine was emitting a large amount of sparks from the rear (not fire). The outboard was not sparking. Obviously, from the process that is taking place inside the engine, things like this could happen. However, this went on for a couple of minutes. Just as I was about to alert a member of the cabin crew, it stopped. Just intrigued as to what the reason for this is and why this happens.