What is the proper emergency lowering procedure for an aerial device?

• A. Jump from the platform.
• B. Use the manual lowering mechanism per manufacturer instructions, maintain control, and evacuate occupants if necessary; call for assistance.
• C. Disconnect power and leave.
• D. Lower as fast as possible.

Answer: (B)

The main concept here is performing a controlled emergency descent of an aerial device using the built-in manual lowering mechanism. In an emergency, the safe path is to engage the manual lowering system exactly as the manufacturer instructs, which provides a controlled rate of descent rather than a free fall. Maintaining control means you guide the platform smoothly, monitor its movement, and be prepared to respond to any changes in status.

Evacuating occupants is part of this process if needed—if the platform can’t be kept stable or lowered safely, you step through a safe evacuation plan for anyone inside the basket. At the same time, calling for assistance ensures you have additional help to manage the situation, stabilize the unit, and coordinate a safe resolution.

Why the other options don’t fit: jumping from the platform is an extreme, uncontrolled fall with a high risk of serious injury. disconnecting power and leaving leaves the device potentially unstable and removes the designed path for a controlled descent. lowering as fast as possible ignores the need for controlled speed and increases the risk of injuries from sudden movements or equipment damage.