Which item is considered a prohibited load in sling load operations?

In sling load operations, a load must meet specific certification requirements to ensure safety and reliability during transport. An item that is classified as a prohibited load is one that lacks the proper certification. This is critical because unverified or uncertified loads pose significant risks during flight, such as instability or failure, which could endanger both the personnel involved and the equipment being transported.

Certified loads have been rigorously tested to ensure they meet safety standards, which facilitates safe and efficient sling loading procedures. The other options indicate situations where the load meets safety or operational guidelines, thereby making them acceptable for sling load operations. Proper certification signifies that the load has been evaluated for weight, size, and potential hazards, ensuring compliance with military standards and protocols for aerial transport.