When ditching on the 737-900 (739), which exits cannot be used?

• A. 1L/R
• B. 2L/R
• C. 3L/R
• D. All exits can be used

Answer: (B)

When considering the ditching procedures for a Boeing 737-900 (739), it's important to understand the functionality and accessibility of the exits during such an emergency. The exits on the aircraft are designed with certain limitations depending on the situation.

The exits at 2L and 2R are typically not usable during a ditching scenario due to their positioning and the potential for water or debris to obstruct access. These exits can be compromised or unsafe to use if the aircraft is stationary in water or partially submerged, making the 1L/R and 3L/R exits the primary and safer choices for evacuation.

Therefore, the choice indicating that 2L/R exits cannot be used during a ditching event accurately reflects these safety considerations, highlighting the necessity for passengers and crew to use alternative exits that are more suited to emergency egress in such challenging circumstances.