Description of Incident
This Safety Alert / Lesson Learned has been raised to highlight an observation involving the CO2 firefighting system onboard a vessel.
The vessel concerned found that during routine monthly inspection of the fixed CO2 system, significant corrosion was noted, this resulted in it not being possible to insert the safety pin to isolate the cylinder during any maintenance.
See Photo A , which shows the safety lever and pin, unable to be positioned correctly in line with the pinhole.
In Photo B after corrective maintenance and repair, it can clearly be seen that the activator arm, and therefore the safety pin aligns with the hole and can now be set to isolation for maintenance if required.
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