What does the second call event (SCE) indicator in ALIS signify?

The second call event (SCE) indicator in ALIS (Aviation Logistics Information System) serves a crucial role in monitoring loading processes by confirming whether automation has verified and checked for newly authorized loading items. This is significant because ensuring that only authorized items are loaded onto an aircraft is essential for maintaining safety and compliance with operational standards.

When this indicator is active or indicated, it reflects that the system has gone through the necessary checks to ensure that any last-minute changes or additions to the cargo have been appropriately accounted for before the finalization of loading. This capability enhances the efficiency of cargo handling and reinforces adherence to weight and balance protocols as established during the flight planning phase.

Understanding this process is essential for maintaining operational integrity and ensuring that critical updates in cargo loading are executed correctly, which can directly affect flight safety and performance. The other options relate to different aspects of the loading and operational process but do not specifically address the function of the SCE indicator, which is fundamentally focused on the verification of newly authorized loading items.