5 Whys of an Accident Scenario

5 Whys of an Accident Scenario

Every accident or near-miss will have its own set of factors that contributed to the incident, and while some may seem obvious, others might not be so clear-cut. By conducting an accident investigation with the 5 Whys method, you’ll learn more about what happened and how to prevent it from happening again in the future. Read on to find out more about why this investigative technique can be so useful when applied to an accident scenario. Read through the content below on 5 Whys of an Accident Scenario. You can also get some help on accident investigation assignments from our platform.

1) Why did this accident happen?

You’re investigating an accident scene. You ask, Why did this happen? The response to that question is, Because there was a car. Why was there a car?: Because someone wanted to drive somewhere. Why did they want to drive somewhere?: To go grocery shopping or visit family. Why did they want to do that?: They were hungry or wanted company. There are probably more whys than I’ve included here—but you get the idea.

This line of questioning helps further explain your original accident Why and ultimately gets at a root cause for why it happened. Once you know what caused an accident, it makes it easier to prevent similar events from happening in future scenarios. Answering all five whys isn’t always feasible; usually answering two or three helps shed light on what went wrong and helps suggest some solutions moving forward.

2) Why was this failure overlooked?

The five whys exercise is a simple process that forces you to really look into a problem. By asking why five times, you eventually get to a core cause—and often, prevent similar failures in future. When conducting an accident investigation, ask yourself: Why did the machine fail? Because it broke down. Why did it break down? Because parts were faulty. Why were they faulty? Because they were incorrectly made by a fatigued worker.

The five whys exercise is a great way to get to core causes and prevent future failures. By drilling down five times, you get to a really deep level—and often identify risks that could be exploited by would-be criminals. Ask yourself: Why did we overlook that risk? Because we thought we were protected. Why did we think we were protected? Because we ignored audits and failed to comply with regulations.

3) Why did this go unnoticed?

When trying to figure out what went wrong, ask why five times. Why was it allowed to happen? Why wasn’t it detected sooner? Why was it overlooked when it happened? In doing so, you can uncover factors that lead up to a disaster, and with them, you can identify steps that can be taken to prevent similar mistakes in future. This is also known as risk management. By determining root causes and mitigating risks beforehand, we can more effectively avoid disasters that cost time and money.

In a disaster scenario, if something happened that resulted in a change, it’s easy to look back and ask why it occurred. This kind of analysis is known as root cause analysis , which can help determine how to prevent similar disasters from occurring in future. The key difference between root cause analysis and 5 whys is that 5 whys helps identify mistakes before they happen.

4) Why was the response slow?

In an accident investigation, as with any good problem-solving technique, it’s important to understand why a response was slow. A thorough review will identify causes and give you a better idea of how to prevent them in future emergencies. If your facility is on call for first aid service at various events, you might want to make sure on-call first aid teams know how best to respond quickly. For example, are there enough supplies within reach? Does your medical equipment need upgrading? Are certain items locked away so they can only be accessed by those with proper training? Do all workers have access cards to get into restricted areas during an emergency situation?

5) Why was no backup equipment available?

As we looked into how to prevent accidents, we realized that many could be prevented if backup equipment was available. If an accident occurs, then someone is responsible for replacing or fixing any damaged parts. However, accidents are unpredictable. There’s no way for anyone to know when something will break down. So if backup equipment isn’t available when it’s needed most, workers are at risk of injury—or worse. In order to eliminate accidents from your workplace, you need a plan in place before anything happens. Talk with your maintenance team about what type of backup equipment should be on hand and where they should store it in case it needs immediate use. And make sure all employees know where it is so everyone can access it without delay.

One thing our business has focused on during its first year of operation has been customer service. To us, providing quality service means more than just taking orders quickly and accurately; we want to build strong relationships with our customers that lead to repeat business over time.


When it comes to dealing with an accident, there are two big questions that you need to ask yourself: What happened? and Why did it happen? The first question gets at the objective facts of what happened. If your objective is to prevent accidents like these from happening again, you need to dig deeper into why they happened in order to develop solutions. The 5 Whys method can help guide your organization’s efforts to understand how mistakes were made and why improvements should be made moving forward. This practice will allow you to adopt better safety practices that prevent dangerous situations before they occur, reducing or eliminating risk for everyone involved.