Which statement is true about the 1L and 1R doors during arming?

Which statement is true about the 1L and 1R doors during arming?

• A. 1L and 1R are armed and crosschecked
• B. 2L and 2R must be armed first
• C. 1L and 1R do not require crosschecking
• D. Only 1L needs to be armed to proceed

Answer: (A)

During arming, the two forward doors (1L and 1R) are armed and crosschecked. Arming sets the door so its emergency slide will deploy if the door is opened in an evacuation, using the arming lever and the attached girt bar. The crosscheck is a second verification step where a second crewmember confirms the door status indicator shows ARMED, ensuring both doors are ready and that no mistake has been made. This is crucial for the primary exits, since both doors need to be prepared for a rapid evacuation. The other statements don’t fit because arming order isn’t restricted to the aft doors, crosschecking is required for these doors, and you wouldn’t proceed with only one door armed.

During arming, the two forward doors (1L and 1R) are armed and crosschecked. Arming sets the door so its emergency slide will deploy if the door is opened in an evacuation, using the arming lever and the attached girt bar. The crosscheck is a second verification step where a second crewmember confirms the door status indicator shows ARMED, ensuring both doors are ready and that no mistake has been made. This is crucial for the primary exits, since both doors need to be prepared for a rapid evacuation. The other statements don’t fit because arming order isn’t restricted to the aft doors, crosschecking is required for these doors, and you wouldn’t proceed with only one door armed.