What is the step that precedes jumpers hooking up in a CH-47?

The step that precedes jumpers hooking up in a CH-47 is checking equipment. This is a crucial step in the parachuting process, as it ensures that all gear is secure and functioning properly before jumpers prepare to exit the aircraft. The equipment check involves verifying that parachutes, harnesses, and any additional gear are correctly fitted and free from defects. This step is essential for safety, as any issues with equipment can lead to serious risks during the jump.

In the context of the sequence of actions, checking equipment must be completed to confirm that all jumpers are prepared and safe before they move on to the next steps, such as sounding off for an equipment check or getting into position to hook up. Prioritizing equipment checks establishes a safety-first mentality that is critical in air operations involving parachuting.