Two-Rescuer Tower Rescue Scenario Practice

Two-Rescuer Tower Rescue: Purpose and Overview

A tower rescue is one of the most demanding tasks a wind turbine technician will ever perform. When a coworker becomes incapacitated at height—through electric shock, a medical emergency, or a fall-arrest event—you and your partner may be the only people close enough to help. The Global Wind Organisation (GWO) Basic Safety Training (BST) Working at Heights module requires trainees to demonstrate a complete two-rescuer rescue sequence within a defined time standard. This lesson builds the muscle memory and decision-making skills that standard demands.

Roles: Rescue Lead and Assistant

Before touching any equipment, both rescuers agree on roles.

• Rescue Lead is in charge of the sequence, calls each step out loud, attaches and operates the lowering device, and maintains communication throughout.
• Assistant packages the casualty, manages the rescue line, monitors anchor integrity, and confirms each step verbally before the lead proceeds.

Role clarity prevents duplicate actions and, more critically, prevents steps from being skipped. If a complication arises (radio failure, weather change), the lead makes the call and announces it; the assistant does not act independently.

The Five-Phase Sequence

Phase 1 — Scene Assessment

Before ascending or approaching the casualty, both rescuers:

1. Confirm they are anchored (fall-arrest or work-positioning lanyard clipped to a rated anchor).

2. Identify the hazard that caused the incident and verify it is controlled (e.g., machinery isolated via lockout/tagout).

3. Communicate: call out casualty's condition, location, and plan.

An unanchored rescuer turning into a second casualty is the single most common critical error in rescue drills. Never advance without being anchored.

Phase 2 — Packaging the Casualty

Packaging means preparing the casualty's body so it can be lowered safely and without injury:

• Check and maintain an open airway; note the position of the casualty's head.
• Secure the casualty in the rescue harness or, if the casualty is already in a personal harness, connect the rescue line to the appropriate attachment point as specified in the GWO sequence.
• Position the casualty upright or in the approved semi-reclined position to reduce suspension trauma risk.
• Communicate each action aloud so the assistant can confirm.

Suspension trauma (orthostatic shock) can occur within minutes when an unconscious person hangs motionless in a harness. Speed of packaging and lowering directly affects outcomes.

Phase 3 — Rigging the Lowering System

The rescue lead rigs the lowering device to the rated anchor while the assistant manages the rescue line:

• Inspect the anchor before loading it.
• Thread the rescue line through the lowering device per manufacturer instructions; confirm the lock/braking function is set.
• Attach the rescue line to the casualty's harness rescue attachment point; verify the connection with a visual and tactile check.
• Both rescuers call out "system check—go" before loading the system.

Phase 4 — Controlled Descent

The lead operates the lowering device; the assistant guides the casualty away from the structure and monitors the rope:

• Lower at a controlled, steady rate—no free-fall, no sudden stops that could injure the casualty.
• Maintain verbal contact or agreed signals throughout (especially if radio communication is lost).
• The assistant at the base receives the casualty and supports the body; do not allow the casualty to impact the ground uncontrolled.

Phase 5 — Handoff

Once the casualty reaches ground level:

• Transfer care to a designated ground-level rescuer or first responder.
• Report the casualty's condition, position found, and any first aid already given.
• Secure the lowering system so it cannot be disturbed before investigators arrive.

Managing Complications Mid-Rescue

GWO scenarios may introduce complications such as simulated radio failure or a weather-change announcement requiring expedited evacuation. The correct response is to continue the rescue without stopping, adapting communication to hand signals or direct voice contact. Stopping a rescue in progress to troubleshoot equipment or wait for better conditions is never acceptable when the casualty is packaged and the system is rigged. Debrief afterward to analyze decision quality.

Safety Reminders for Practice

• OSHA lockout/tagout: even on a practice frame, treat every simulated energy-isolation step as real.
• Wear all required PPE: helmet, gloves, appropriate footwear, and any PPE specified by your instructor.
• Inspect all rescue equipment before every repetition; damaged kit must be removed from service.
• The weighted rescue manikin must be secured at all times—a dropped manikin is treated the same as a free-falling casualty and is an automatic critical error.
• Spotters are in position during every repetition on the practice frame.

Using the GWO Time Standard

GWO sets a time standard for the rescue evolution. Your instructor will time each pair from the moment the scenario begins until the casualty is confirmed at ground level and handed off. Exceeding the time standard on evaluation results in a required remediation repetition. Use your practice runs to find efficiency—not by cutting steps, but by moving deliberately and communicating crisply. Hesitation usually comes from uncertainty about the next step; the reference cards are there during practice so you can engrain the sequence.