What must be done with all closed doors that are not required for wheel chair lift-on/lift-off?

The correct response indicates that all closed doors that are not required for wheelchair lift-on/lift-off must be closed and disarmed. This is essential for safety and operational efficiency. When doors are closed and disarmed, it ensures that they cannot be inadvertently activated, which protects both passengers and crew during boarding and deplaning. It also aids in maintaining a controlled environment within the aircraft, contributing to overall safety protocols.

In contrast, leaving doors open or slightly ajar can create unnecessary hazards and confusion, especially in emergency situations where clear pathways are necessary. Additionally, having doors that remain unlocked can lead to unauthorized access or operational issues, further emphasizing the importance of the correct handling of these closed doors. This practice aligns with safety regulations and operational procedures that prioritize the wellbeing of everyone involved.