Boeing 777 "knocking" query
Hi, I'm not technically qualified as aircraft go, but wonder is anyone canthrow a little light on a recent flight I was on.
The 777/300 had just taken off from Bangkok and I was sat over the wngs by the right hand side window. I found it rather disconcerting when,from below the floor, a heavy thumping could be felt. This would happen, three or four knocks, then stop for a while and then start again. this continuied to go on for about and hour into the flight then it stopped.
I brought this to the attention of the cabin crew, but felt I was rather fobbed off as nothing to be cocerned about.
Could anyone enlighten as to what the cause of this knocking could be. I know it's a long shot, but would be very interested to replies.