757 evac chutes
I used to open 747 doors from the outside. Althought in theory the butterfly handle should disarm the chutes, the procedure was that the cabin crew gave the 'thumbs up' to confirm they were disarmed, then we would 'crack' the door and not only check that the girt bar was stowed, but also that the gas bottle was disarmed. If that thing had gone inside a jetty it would have been curtains!