If 3L/3R doors must be used in a ditching on the 777-300ER, which mode should they be opened in?

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Multiple Choice

If 3L/3R doors must be used in a ditching on the 777-300ER, which mode should they be opened in?

Explanation:
Opening the 3L/3R doors in disarm mode is the procedure because these exits are used as liferaft exits in a ditching. In disarm, the door can be opened and controlled without triggering automatic slide deployment, allowing the crew to manage raft deployment and passenger egress onto the water safely. If you arm the door, opening it could cause the slide to inflate immediately, which can obstruct the exit and complicate using the raft in the water. Auto would also drive automatic deployment, which isn’t desirable in this scenario, and manual isn’t the standard method for these exits during a ditching. So, disarm mode is the correct choice.

Opening the 3L/3R doors in disarm mode is the procedure because these exits are used as liferaft exits in a ditching. In disarm, the door can be opened and controlled without triggering automatic slide deployment, allowing the crew to manage raft deployment and passenger egress onto the water safely. If you arm the door, opening it could cause the slide to inflate immediately, which can obstruct the exit and complicate using the raft in the water. Auto would also drive automatic deployment, which isn’t desirable in this scenario, and manual isn’t the standard method for these exits during a ditching. So, disarm mode is the correct choice.

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