B 737 ovhd pnl
For those who wonder how heavy it is belive me when I say that they are HEAVY. Difficult to say how much exatly but a good guess could be atleast 30 kg (65 lbs)
Its hinged in one end like on many other aircraft types.
If it would just fall down when sitting on gate it could probably easily know you out so imagine what it could do with some velocity
Wings 1011