Doors on the 777-200ER should be opened in what mode during a ditching?

Doors on the 777-200ER should be opened in what mode during a ditching?

• A. Armed mode
• B. Disarmed mode
• C. Auto mode
• D. Manual mode

Answer: (A)

In a ditching, you want the exit slides to be ready to provide flotation the moment a door is opened. Arming the door activates the slide/raft system so that when the door is opened, the slide inflates automatically and becomes a life raft. If the door were disarmed, the slide wouldn’t inflate on its own, delaying flotation and making egress more dangerous in a water landing. Manual mode would require the crew to take additional actions at the moment of exit, which is inefficient and risky in an emergency. Auto mode isn’t the standard practice for this scenario because the aim is reliable automatic inflation as soon as the door is opened, which armed mode ensures.

In a ditching, you want the exit slides to be ready to provide flotation the moment a door is opened. Arming the door activates the slide/raft system so that when the door is opened, the slide inflates automatically and becomes a life raft. If the door were disarmed, the slide wouldn’t inflate on its own, delaying flotation and making egress more dangerous in a water landing. Manual mode would require the crew to take additional actions at the moment of exit, which is inefficient and risky in an emergency. Auto mode isn’t the standard practice for this scenario because the aim is reliable automatic inflation as soon as the door is opened, which armed mode ensures.