Dropping a few thousand feet is not unique to Onur. It can happen anywhere and on any airline. Many years ago I was on a flight to (er...now then...er...can't remember!) when the seat-belt sign came on - as it does. We all did as we were told, whilst sipping our wine/beer/G&Ts. Then whoosh! The plane dropped away from under us and for a few seconds I was pinned to my seat-belt! The plane dropped and dropped again...then steadied....then dropped again. All of the cups and trays went everywhere as did blankets, magazines and the odd set of dentures!
If I recall correctly, the pilot said we had dropped a total of 1000ft.
And what a roller-coaster ride it was.
As you can imagine, we all clapped when the plane landed; mostly out of relief, but I was hoping for another go (I was about 18yrs old at the time).
Glen