Who must have access to the container keys when building pallets?

Access to the container keys is primarily a responsibility of the aircrew when building pallets. The aircrew, who are directly involved in the loading and securing of cargo within aircraft, must have the necessary access to ensure that they can operate efficiently and safely during the loading process.

Having the keys allows the aircrew to open and inspect containers as needed, ensuring that the cargo is appropriately managed and secured for flight. This is vital for safety and compliance with aviation regulations. Moreover, the aircrew's direct involvement with the aircraft and their critical role in ensuring that all cargo is loaded according to specifications necessitates this access.

While other groups such as the ground crew, logistics personnel, and maintenance staff play important roles in the overall operation, their responsibilities typically do not involve direct access to the container keys during the pallet-building stage, highlighting the specific need for aircrew access in this context.