- Incorrect gasket installation led to fire during sea trials.
- The turbocharger gasket used was not suitable for high temperatures.
- Proper identification of parts and materials is essential for safety.
During sea trials following a docking period, smoke and fire were seen coming from the turbocharger flange to the exhaust manifold of one of the engines, reports IMCA.
What Went Wrong: Incorrect Gasket
The fire occurred because the gasket on the turbocharger flange was damaged.
The gasket was not the right one for this type of engine, as it was designed for temperatures below 300°C, whereas a gasket above 500°C was required.
Improper Part Availability
During the overhaul, the correct turbocharger flange gasket was not available on board.
The wrong part was used because the correct parts were not properly identified.
Overhaul Concerns
The engine had just been overhauled, and all components were cleaned.
Despite this, there was concern that residual material from the combustion chamber might have reached the turbocharger area.
Cause: Gasket Specification Mismatch
The cause of the fire was the installation of an incorrect gasket that did not meet the required temperature specification.
The installed gasket was only suitable for <300°C, while the engine required >500°C.
Lessons and Actions
- Check equipment and spares carefully to ensure they meet specified requirements, especially for safety-critical equipment.
- Gaskets designed for temperatures above 500°C are easily identified by a visible wire mesh in the middle of their structure.
Reference Materials
Members are advised to refer to relevant material on vessel fire risks.
The fire in the incinerator exhaust gas manifold for further insights into preventing such incidents.
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Source: IMCA
