Scenario

01. Poor Concept
02. Poor Strategy or Concept
03. Bad Selection of Manufacturer
04. Organizational Problems
05. Poor Management
06. Poor Management of Supplies Acceptance
07. Non-Regular Action
08. Inaction
09. Leave to Vendor only
10. Failure
11. Fracture/Damage
12. Crack
13. Secondary Damage
14. External Damage
15. Leakage

Leakage due to a crack of the weld part of a block valve for branched piping at a fuel oil hydrodesulfurization unit
Case Details

Knowledge Comment:
You must select the reliable manufacturer for the finished goods of large number such as valves, fittings and so on. Because, you must not execute receiving inspection of all finished goods.

Field Chemicals and Plants
Author DOBASHI, Ritsu (School of Engineering, The University of Tokyo)
TAMURA, Masamitsu (Center for Risk Management and Safety Sciences, Yokohama National University)