Which of the following is NOT an identifier for an LD-3 unit load device?

The LD-3 unit load device is a specific type of container used in air transport for cargo and baggage. Identifiers for these devices typically follow a specific format that helps classify and identify the type and size of the container.

In this context, the identifiers for LD-3 units generally include codes that are standard within the aviation industry. For example, DKN and DKE are valid identifiers for types of LD-3 containers. AKN also represents another type of LD-3 unit.

The identifier AVE, however, does not correspond to any known type of LD-3 unit load device used in air cargo operations. Thus, it is the option that is not a proper identifier for an LD-3 unit load device, making it the correct choice in this scenario. Understanding the specific identifiers helps in efficiently managing air freight logistics by ensuring the correct units are being referenced and utilized.