What must be closed when moving an aircraft to prevent damage to the horizontal stabilizers?

Closing Door 68L/R is essential when moving an aircraft to prevent damage to the horizontal stabilizers. This door is positioned near the rear of the aircraft, and when left open during movement, there is a significant risk that the stabilizers could be struck by objects or the door itself could swing out and cause damage.

Ensuring that this door is closed not only protects sensitive components on the aircraft but also helps maintain the overall structural integrity during ground maneuvers. Proper procedures dictate that all necessary doors be checked and secured as part of pre-movement inspections to mitigate the risk of damage during ground handling.