Grinder disc fatal injury

Contributing Factor

• Communication
• Complacency
• Competence
• Change management
• Control of work
• Commitment
• Culture

Description of Process

Use of angle grinder

Description of Incident

A contractor employee was modifying a road guardrail post using an angle grinder. While testing the grinder, a disc shattered and ejected fragments into his neck, resulting in a fatality.

What Went Wrong?

• Contractor fabricated the guardrail after adopting an incorrect installation method.
• Contractor employee was not trained in the proper use of the angle grinder.
• 9” angle grinder protection guard was removed in order to fit a 14” cutting wheel.
• Angle grinder was rated for a higher speed which exceeded the specification limits of the disc used.
• Personal Protective Equipment (PPE) was not available on site.

Good Practice Guidance

• Do not modify working tools - this includes the removal of provided guards.
• Ensure the correct tool for the job is selected and operated in accordance with the manufacturer instructions.
• Ensure personnel are qualified to perform tasks and maintain proper communication amongst crews.
• Ensure the correct PPE for the job is identified and provided at site.
• Exercise your authority to stop the job.