Which identifiers are associated with an LD-3 unit load device?

An LD-3 unit load device, commonly used in the air cargo industry, has specific identifiers that help in recognizing and managing these containers during flight operations. The identifiers DKN and AKE are indeed associated with the LD-3 unit.

DKN is a designation that refers to a specific type of LD-3 container, typically utilized for transporting cargo in the lower deck of an aircraft. AKE, on the other hand, is another identifier that denotes a variant of the LD-3 container that is used for similar purposes, such as carrying baggage, cargo, or mail, but may have slight differences in dimensions or specific configurations.

Understanding these identifiers is crucial for ramp agents and other ground personnel as it aids in the proper handling, loading, and unloading of cargo, ensuring efficient operations and safety compliance. The other options provided contain identifiers that are not specifically tied to the LD-3 device, which clarifies why they do not serve as the correct answer in this context.