The Rescue From Six Metres
You are working alone on a stockpicker at 6.0 m, picking from a rack. Your full-body harness is attached to the platform anchor by a 1.8 m lanyard. The platform's guardrail is 1.1 m high. You feel unwell and cannot lower the platform using the controls; the machine has an emergency lowering valve but it is on the chassis, out of reach. Your mobile phone is in your pocket. The aisle is empty; the nearest worker is in the next bay, about 40 m away, behind racking. The site's rescue plan says 'use the emergency lowering valve' but does not describe how a lone operator reaches it.
1. Assess the fall-protection and rescue situation you are in.
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You are at 6.0 m with a 1.1 m guardrail, so the fall hazard is real if the guardrail is breached or the platform tips. The harness and lanyard are the fall-arrest system, but a 1.8 m lanyard allows a fall of up to 1.8 m before the arrest, plus deployment and body height - this needs adequate clearance below, which must be checked. The bigger problem is rescue: the emergency lowering valve is on the chassis and unreachable from the platform, and the site plan assumes an operator can reach it. That is a gap in the rescue plan. You are effectively stranded at height with no self-rescue method and no nearby assistance. The correct response is to call for help by phone, stay anchored, and not attempt to climb down the mast or guardrail.
2. What would you do in the next few minutes, and what would you change in the rescue plan?
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Immediate actions: stay in the platform, keep the harness attached, and use the phone to call the site emergency contact and state your location, height, and that you cannot lower the platform. Do not attempt to climb out or jump. If a second trained operator is available, they can operate the chassis emergency lowering valve from the ground while you remain anchored. Keep still to avoid destabilising the platform.
Plan changes: the rescue plan must identify a method for a lone operator to reach the emergency lowering valve or to summon help, such as a second operator on the ground, a platform-mounted secondary lowering control, or a radio/phone protocol with a check-in. The plan should specify who is trained to perform a ground rescue, how they access the valve, and how the operator is recovered. It should also require a check that the lanyard length and anchor point give adequate fall clearance.
3. What does this case show about lone working and communication?
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Lone working at height is only acceptable where a reliable means of summoning help exists and a rescue method is feasible. Here, the phone was the only link and the nearest worker was 40 m away behind racking, so communication was poor. The site should require a check-in schedule, a radio or phone with signal coverage, and a buddy or ground spotter for elevated work, or prohibit lone elevated picking where rescue cannot be performed. Communication and rescue planning are controls that must be verified before the task, not improvised after a problem occurs.