What happens during an accident investigation

Even in a well-maintained lift or escalator system, accidents can still happen. When they do, having a clear, professional accident investigation process in place is essential – not just to understand what went wrong, but to protect people, meet legal obligations, and prevent the same incident from happening again.

At Elevating Safety Solutions (ESS), our accident investigation service is built around exactly this: a structured, evidence-led process that gets to the root cause of an incident and turns it into practical recommendations for the future.

Here’s what that process actually involves.

Accidents in the lift and escalator industry
Lifts and escalators are among the safest forms of transport in daily use, but they’re also complex mechanical and electrical systems operating in high-traffic environments. This means when something does go wrong, the consequences can range from minor to extremely serious.

Incidents broadly fall into two categories:

• In-service accidents involving members of the public – trips and falls at landing thresholds, passengers becoming trapped between floors, or panic attacks triggered by being stuck in a confined space.
• Accidents involving engineers – incidents that occur during installation, maintenance or repair work, which can range from minor injuries to serious falls, entrapment in the lift shaft, or, in the most severe cases, fatalities.

Both categories require investigation, but the scale of that investigation and the regulatory obligations attached to it will depend on the severity of what’s happened.

What to do when an accident occurs
The first few hours after an accident are critical. Before any formal investigation begins, the priority is always:

1. Make the area safe – take the lift or escalator out of service and secure the site to prevent further injury.
2. Provide first aid and medical attention as needed.
3. Preserve the scene – avoid moving equipment or clearing debris until it’s been recorded, wherever possible.
4. Call in a specialist investigator. This is where ESS comes in.

Acting quickly matters. The longer the delay, the more likely it is that physical evidence changes, witness memories fade, or the scene is disturbed before it can be properly assessed.

The ESS accident investigation process
Our investigation follows a consistent, methodical process:

1. The accident is reported
   We’re called in as soon as possible after the incident, so we can begin gathering evidence while it’s still fresh.
2. Attending the site
   Our team travels to the location to carry out an on-site assessment, ideally before the equipment or area has been disturbed.
3. On-site evidence gathering
   This is the core of the investigation. It typically includes:

• Assessing the condition of the lift, escalator or surrounding area
• Taking photographs of the equipment, the site and any visible damage
• Recording measurements relevant to the incident
• Taking witness statements from anyone who saw the accident or was involved

4. Root cause analysis and reporting
   The evidence is analysed to establish not just what happened, but why, identifying the root cause rather than just the immediate trigger. This is written up into a full report, which includes practical recommendations to prevent a repeat occurrence. These might include additional training, replacement or upgraded parts, changes to maintenance schedules, or procedural changes.
5. Review meeting
   Finally, ESS meets with the client to walk through the findings and recommendations, answer questions, and agree on next steps.

When RIDDOR applies
For more serious incidents, particularly those involving major injury, hospitalisation or fatality there’s an additional legal dimension. Under the Reporting of Injuries, Diseases and Dangerous Occurrences Regulations (RIDDOR), certain categories of workplace accident and dangerous occurrence must be reported to the Health and Safety Executive (HSE) by the responsible person, within set timeframes.

Where a case meets this threshold, ESS builds the RIDDOR submission into the investigation process, ensuring the report is thorough, accurate and submitted in line with the regulations. Given the legal weight these reports carry, having an experienced investigator manage this process helps ensure nothing is missed and the business is properly protected.

Why a structured investigation matters
Having an accident investigation in place can help companies learn from what’s gone wrong, and most importantly prevent further incidents. A properly conducted investigation:

• Identifies the true root cause, not just the surface-level trigger
• Produces evidence-based recommendations that reduce the risk of recurrence
• Supports compliance with legal reporting obligations
• Provides a clear, defensible record should the incident be challenged or investigated further

If you’re dealing with an accident involving a lift or escalator, whether it involves a member of the public or a member of your engineering team getting the right expertise involved quickly makes a real difference.

Find out more about ESS’s accident investigation service.

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