Truck gets lifted as a container is picked up at a container terminal. As can be seen, the lock securing the container to the trailer on the back-right is not released before the crane starts lifting the container. This is the result.

When we get to the terminal, off the city/county road... First thing we do when we reach the lineup is to get out and unlock. Longshore can see when we pull up to the top strad, side strad, or RTG crane, if the container is unlocked. Once or twice per day I see a chassis rise into the air like this. This will bend the frame of the truck and chassis, resulting in both never being alligned properly. The twist locks may snap or suffer metal stress, rendering them weak and susceptible to failure in the future. This is the fault of the truck driver, not the longshore operator. It is a lesson to us truck drivers to unlock in line outside of terminal operations.