Effective accident investigation

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EFFECTIVE ACCIDENT INVESTIGATION Yawar Hassan Khan

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Transcript of Effective accident investigation

Page 1: Effective accident investigation

EFFECTIVE ACCIDENT INVESTIGATION

Yawar Hassan Khan

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INTRODUCTION

YAWAR HASAN KHAN CERTIFIED HSE MANAGEMENT

PROFESSIONAL ASSISTANT SAFETY OFFICER- ACL

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What is an accident

An accident is the final event in an unplanned process that result in injury or illness to an employee and possibly property damage

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Accident types

STRUCK BY STRUCK AGAINST CONTACT BY CONTACT WITH CAUGHT ON CAUGHT BETWEEN FALL TO SURFACE FALL TO BELOW OVER EXERTION BODILY REACTION OVER EXPOSURE

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CAUSE OF ACCIDENT

Old theory-worker error :says worker makes a choice to work in an unsafe manner

New theory-system approach : says accidents occur due to multiple causes and due to defects in the systems

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Characteristics of effective incident investigation program Clearly assigned responsibility for accident

investigation All accident investigations will be formally

trained on accident investigation techniques The purpose is to find fact not fault Dig deep to know hazardous conditions that

caused accidents report will make the recommendations to

correct the hazardous conditions and work practices

Corrective actions must be completed An annual review of accident reports

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Six steps for conducting accident investigation

Secure the accident scene Conduct interview Develop the sequence of events Conduct cause analysis Determine the solutions Write the report

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DOCUMENTING THE ACCIDENT SCENE

Make personal observations Take photos of accident scene Take video clips of the scene sketch the accident scene Interview records

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Steve’s seven rights of interview process

Be sure you ask the Right people the Right question at the Right time in the Right place in the Right way for the Right reason to uncover the Right facts

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WHO NEEDS TO BE INTERVIEWED

The victim Co workers Direct supervisors Manager Training department Personnel department Maintenance department Emergency responders Medical personal Coroner Police The victim’s spouse and family

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Effective interviewing techniques

Keep the purpose of investigation in the mind

Approach the investigation with an open mind

Go to the scene Express concern regarding the accident

and desire to prevent a similar occurrence

Tell the interviewee that the information they give is important

Be friendly , understanding and open minded

Be calm and unhurried

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Single event theory

An accident is thought to be the result of a single , one time easily identifiable , unusual , unexpected occurrence that result in injury or illness

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The domino theory

This describes as a series of related occurences which lead to a final event that results in injury or illness

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Multiple cause theory

Accidents are a result of a series of random related and / or unrelated actions that somehow interact to cause the accident

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Four categories of events

Actual events Assumed events Non events Simultaneous events

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Developing the sequence of events

Once the sequence of events is developed we will study each event to know:

Hazardous condition Unsafe behaviors System weaknesses

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Components of an event

Actor: the actor is an individual or object that directly influenced the flow of the sequence of events

Action is something that is done by the actor

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Hazardous conditions

Materials Machinery Equipment Tools Chemicals Environment Workstations Facilities People workload

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Levels of cause analysis

Injury analysis Event analysis System analysis

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Higher priority strategies that control hazards

Elimination Substitution Engineering controls

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Lower priority strategies to control exposure and behavior

WARNINGS ADMINISTRATIVE CONTROLS PERSONAL PROTECTIVE EQUIPMENT

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WRITING THE REPORT

Background Description Findings Recommendations Summary

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THANK YOU

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