Which exits are not used for evacuation in a ditching on the 777-300ER?

Which exits are not used for evacuation in a ditching on the 777-300ER?

• A. 3L/R
• B. 2L/2R
• C. 1L/1R
• D. 4L/4R

Answer: (A)

In a ditching, the goal is to evacuate passengers onto life rafts as quickly and safely as possible, using exits whose slides can function as rafts and that place evacuees onto the water without flooding the cabin. On the 777-300ER, the rear doors near the tail are not used for ditching evacuations because their slide/raft configurations are not intended to deploy as rafts in water; opening them in a water scenario can also risk flooding or getting passengers into deeper water. Instead, evacuations are directed through the exits that have slides capable of becoming rafts and that position evacuees onto the water surface in a controlled way. The other door pairs are used to ensure there are enough rafts and clear access to them, with passengers proceeding to the life rafts from those exits.

In a ditching, the goal is to evacuate passengers onto life rafts as quickly and safely as possible, using exits whose slides can function as rafts and that place evacuees onto the water without flooding the cabin. On the 777-300ER, the rear doors near the tail are not used for ditching evacuations because their slide/raft configurations are not intended to deploy as rafts in water; opening them in a water scenario can also risk flooding or getting passengers into deeper water. Instead, evacuations are directed through the exits that have slides capable of becoming rafts and that position evacuees onto the water surface in a controlled way. The other door pairs are used to ensure there are enough rafts and clear access to them, with passengers proceeding to the life rafts from those exits.