Should a load suspended from a helicopter be grounded before being handled?

Grounding a load suspended from a helicopter before handling is crucial primarily to dissipate any static charge that may have built up on the load during flight or due to environmental conditions. Static electricity can accumulate on materials, especially in dry or windy conditions, which can lead to dangerous situations if ignited or discharged improperly.

By grounding the load, the charge is safely discharged into the earth, thus minimizing the risk of sparks or electrical discharges that could potentially pose risks to personnel and equipment. This grounding step enhances safety when the load is handled or transferred to another surface.

In contrast, the other choices do not correctly highlight the reason grounding is critical. While preventing movement and avoiding accidents are important considerations, they do not specifically address the primary purpose of grounding in the context of static electricity and safety in handling loads suspended from aerial equipment. Grounding is not unnecessary; rather, it's a vital safety protocol to ensure that static charges are managed effectively.