CUI Major Incident# 4: Kawasaki Fuel Oil Leakage
Aug 26, 2020
Kawasaki Fuel Oil Leakage
Date and Place of the Incident:
On July 7, 1993, a fuel oil leak occurred during transfer at a refinery in Kawasaki, Kanagawa, Japan.
Summary of the Incident:
- During loading, fuel oil leaked from a piping of a marine loading equipment.
- The leak occurred from a corroded pipe which lacked adequate surface treatment and was unprotected against sea water splashing.
- Approximately 2 liters of fuel oil leaked into the sea.
Root Cause of the Incident:
- Corrosion under insulation was the root cause of the incident.
- Poor surface treatment permitted allowed the rust to remain and the sea water to corrode the pipe.
- Due to loss of thickness, fuel leaked from the corroded pipe after an hour of oil transfer.
Financial Loss to Freedom Industries:
The fuel oil leak had minimal or no financial charges but a similar incident already occurred in 1990 wherein 190 liters of oil leaked has caused significant impact to the company.
Environmental Impact of the Incident:
Sea and marine pollution was the damage done by the estimated 2 liter fuel oil leak.
Fatality or injury due to the Incident:
No injuries or fatalities were recorded during the time of the incident.
Non-Compliance of Safety Guidelines and Reliability Practices:
- Inadequate risk recognition during oil transfer.
- Insufficient surface treatment of the fuel oil piping.
- Lack of proper visual assessment and inspection for the piping.
Recommendations to Avoid Corrosion:
- Perform adequate pipe inspection practices.
- Conduct proper surface treatment to protect the piping and remove rust.
- Implement thickness monitoring and measurement for the operating pipes.
Links to the photos/videos:
The websites below provide full access to the incident report, useful insights, and related images.