What you didn't know about accident investigations
There is indeed a difference between “accident” investigations and “incident” investigations. OSHA encourages use of the term “incident” investigation. Historically, “accident” was an acceptable reference to investigations in the workplace. However, OSHA now recognizes that “accident” refers to something unexpected, random, and not preventable. This is contrary to the current belief that nearly all workplace incidents, injuries, illnesses, and even fatalities are preventable.
Preventability
So, are workplace incidents and illnesses preventable? By investigating the definition of “preventable,” safety-minded workers will agree that the answer is “yes” they are preventable.
Preventability can mean capable of being avoided, conscious of risks or hazards that could be eliminated, hindering danger, or keeping from happening. When comparing any of these definitions with engineering or administrative controls and the use of personal protective equipment (PPE), it’s apparent that workplace incidents are preventable.
Effective incident investigations
Now that we’re comfortable with using “incident” for investigations, let’s review how to ensure they’re done effectively. Before getting started, though, it’s imperative to understand that incident investigations should never be a fault-finding mission or a blame game. Investigations should focus on root, systemic, and other underlying causes rather than what appears to be “obvious.”
Effective incident investigations start with a plan, or program. When an incident occurs, most employees will be focused on what’s happening. This is why having a plan in place ahead of time and being prepared before an incident occurs is essential. The plan should contain clear and easy-to-follow procedures for investigating incidents. Personnel should be involved in developing the plan and be provided regular training. Incident investigation plans should be reviewed at least annually.
The most effective incident investigations are performed by supervision. Though they’re most aware of over operations, the investigations should also include workers, engineering, and maintenance to collaborate and share varying perspectives of what occurred and how to prevent future occurrence. This collaboration has the side benefit of motivating everyone to “own” their part of the solution and work together to implement change.
OSHA encourages the use of a systems approach to incident investigations. The approach includes:
- Preservation of the scene and documentation,
- Information and data gathering,
- Identifying root cause(s),
- Implementing corrective actions, and
- Evaluating the effectiveness of corrective actions.
There are many tools and concepts to aid employers in the investigation process. These include the 5-why, fishbone diagram, root cause analysis (RCA) tools, and so forth. Regardless of the procedure or tool used, the end goal is the same — determining everything that played a part in the incident occurring.
Don’t forget near misses. These should be investigated as well since the only difference between a near miss and an incident is luck!
Effective incident investigations are good business. They help employers prevent future incidents, save medical and worker’s compensation costs, and maintain productivity. Investigations help employees by keeping them safe, content, and able to earn an income.
Keys to Remember
“Accidents” are random and not preventable. OSHA believes that because workplace injuries and illnesses are preventable, it’s better to use the term “incident” investigations. All incidents and near misses should be investigated to prevent similar occurrences in the future. Using a systems approach helps maintain the integrity of the investigation and ensures consistency for identifying and correcting hazards in the workplace.