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01. |
Poor Value Perception |
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02. |
Poor Safety Awareness |
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03. |
Inadequate Risk Recognition |
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04. |
Insufficient Analysis or Research |
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05. |
Insufficient Practice |
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06. |
Lack of Imagination |
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07. |
Carelessness |
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08. |
Insufficient Precaution |
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09. |
Carelessness of Planner |
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10. |
Planning and Design |
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11. |
Poor Planning |
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12. |
Poor Planning of Washing |
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13. |
Usage |
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14. |
Maintenance/Repair |
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15. |
Wrong finishing |
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16. |
Bad Event |
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17. |
Chemical Phenomenon |
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18. |
Concentration |
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19. |
Failure |
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20. |
Fracture/Damage |
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21. |
Cracking |
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22. |
Secondary Damage |
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23. |
External Damage |
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24. |
Leakage/Fire |
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Leakage and fire of hydrogen caused due to stress corrosion cracking that originated from the influence of turnaround shutdown maintenance on a drain valve at hydrogen gas piping in a fuel oil desulfurization cracking unit
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Knowledge Comment: |
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Failure of finishing polythionic acid treating against cracking generation resulted the crack of drain valve. |
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