Which POA is NOT allowable for the UH-60A/L/M?

The nylon single point of attachment (POA) is not allowable for the UH-60A/L/M because this type of sling has characteristics that do not meet the aircraft's specifications for safe and effective load handling. Specifically, nylon slings are less robust in handling the high-friction and dynamic loads generated during helicopter operations compared to other materials.

In contrast, the other options, such as the 11K cargo hook reach pendant, the 25K apex fitting with spacer, and the polyester round sling, are specifically designed to handle the operational stresses encountered in sling load applications. These items comply with military standards for materials and configurations that are compatible with the UH-60's systems and load capacities.

Using an improper POA like the nylon single POA could lead to failures in load security during flight, presenting safety risks to personnel and equipment. This is critical in aviation operations, particularly in military contexts where mission effectiveness and safety are paramount.