Chest Strain - Poor Body Position


What Happened?

A worker was performing maintenance on a check valve when he felt pain on his right side. The work activity required the worker to pull and align the check valve for bolt installation. To perform the work, the worker was reached behind the valve and placed his body in an awkward position. This resulted in a “chest wall strain” to the right side of his shoulder.

Contributing Factors

The method perceived to be the quickest and easiest required an awkward body positioning.

Using this body position was “the way it was always done.”

What Can We Learn?


A Questioning Attitude (and a 2 Min Drill) would have led him to assess the best body positioning and evaluate whether there was a better way to accomplish this task. 


The worker displayed Overconfidence in his ability to perform this task in such an awkward body position.

Peer Pressure was a possible contributor as the worker was performing the task the same way it was executed in the past.

Ask the Right Questions

How does this relate to our work?

Where do we have similar traps?

What Tools can we use to avoid a similar incident?

Was a stop work point missed?