What should be done if the airstairs fails to retract during operation?

In the event that the airstairs fail to retract during operation, it is crucial to follow established safety protocols. Informing the captain and seeking permission to use the standby system is the appropriate course of action. This process ensures that the situation is handled professionally and safely, as the captain has the overall responsibility for the aircraft and crew. The standby system may provide an alternative means to ensure that the airstairs can be stowed properly, minimizing any risk to passengers or crew.

This response aligns with standard operating procedures that prioritize safety and communication between crew members. Acting independently without consulting the captain could lead to unsafe conditions or additional complications. The emphasis on communication and permission underscores the importance of teamwork and adherence to protocol in aviation operations.