A triple click aural signal indicates?

The triple click aural signal on an A320 aircraft specifically indicates a change in landing capability. This alert is essential for the flight crew as it provides immediate feedback regarding the aircraft's status in terms of landing configuration or capability, which could relate to various system parameters that might need to be addressed in a flight operation.

Understanding such alerts is critical, especially in complex situations involving landing gear status or other crucial systems that influence landing safety. It serves as a prompt for the pilots to reassess their operational status before the landing phase, ensuring that they are aware of any changes that may impact the aircraft's approach and touchdown procedures.

Other signals, such as SELCAL or altitude alerts, serve different purposes and indicate specific events or system states. Thus, recognizing the unique nature of the triple click as related to landing capability change is important for safe aircraft operation.