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SHS Topic 1 Incident Investigation - Coggle Diagram
SHS Topic 1 Incident Investigation
Objective
Determine root cause
Prevent occurences
Determine if the necessary safety regulations are being followed.
Compliance with legal obligation
Determining the cost of an incident
Work injury compensation
Accident Causation Theories
Heinrich's Domino Theory
" The occurrence of an injury invariable results from a completed sequence of factors, the last one of these being the injury itself."
5 Factors of accident sequence
Fault of person
Unsafe Act/Condition
Social Environment
Accident
Injury
The fall of one of the domino on the left will start a chain of reaction resulting the others to fall
Social
Fault of person
Unsafe act/condition
Injury
Injury is cause by preceding factors
Removal of central factor can stop preceding factor being effective
To stop occurrence of accident, one need to break the chain reaction by eliminating " Unsafe act and unsafe condition"
Frank Bird's Model
Immediate Causes
Substandard Acts
Removing machine guarding
Horseplay
Servicing equipment in operation
Failure to use PPE
Operative defective machine
Substandard Conditions
Inadequate guards/barriers
Poor housekeeping
Defective tools/equipments
Excessive noise
Inadequate ventilator
Basic causes
Inadequate Physical capability
Lack of Skill
Lack of Knowledge
Improper Motivation
Job Factors
Inadequate supervision/Leadership
Inadequate Work Standards
Inadequate Maintenance
Abuse or Misuse, unsafe act condoned by supervisor
Lack of Control
Inadequate of standard
Inadequate programs
Inadequate Compliance
Root Cause Analysis
Fish Bone Diagram
Machine
Material
Method
Environment
Man
Factor to consider for the implementation of corrective and preventive measures
Timelines
Roles and Responsibilities
Resources
Incident Investigation Process
Phrase 1. Collection of data
take photo/video of incident scene
Collect statement of witness and those involved in the incident
Phrase 3. Resolution of occurrence
Realistic assessment of the viability of the corrective action
Monitor the situation periodically to verify resolution
Phrase 2. Event Investigation
Evaluation data collected and identify causal factor that led to accident
Incident Reporting Procedures
When to report ireport
Report within 10 days
Outpatient/hospitalisation
Light duty
Death
Occupational Disease
Typical approach in accident prevention
Implement risk assessment
Management commitment to safety programme
Safety inspection to find out systemic shortcoming rather than blaming
Factors to consider for effective accident prevention