In a ditching on the 777-300ER, 3L/R are operated in the disarm mode if they must be used?

In a ditching on the 777-300ER, 3L/R are operated in the disarm mode if they must be used?

• A. True
• B. False
• C. Not applicable
• D. Depends on conditions

Answer: (A)

In a ditching, the goal is a controlled, reliable life-raft evacuation. The 3L and 3R doors on the 777-300ER are designed to be used as raft exits, and when they must be used, they are operated in disarm mode. Disarming these doors prevents the slides from inflating automatically, allowing the crew to deploy and deploy the life rafts in a deliberate, controlled way. This helps ensure the rafts are properly inflated, positioned, and ready for boarding onto the water, without the slides inflating where they could hinder access or become entangled in rough conditions. So, when these doors need to be used in a ditching, using disarm mode is the appropriate procedure.

In a ditching, the goal is a controlled, reliable life-raft evacuation. The 3L and 3R doors on the 777-300ER are designed to be used as raft exits, and when they must be used, they are operated in disarm mode. Disarming these doors prevents the slides from inflating automatically, allowing the crew to deploy and deploy the life rafts in a deliberate, controlled way. This helps ensure the rafts are properly inflated, positioned, and ready for boarding onto the water, without the slides inflating where they could hinder access or become entangled in rough conditions.

So, when these doors need to be used in a ditching, using disarm mode is the appropriate procedure.