When should mooring system lines be replaced according to MEG4?
This is a fact that has to occur at some point and there is no way to avoid it. But the rate at which ropes age can be substantially influenced. Operators should be aware of all factors impacting on the service life of the mooring system in use on their vessel – and conscious that it has a direct effect on the safety of the crew and port staff. As a general guide, mooring system lines should be replaced when they reach a residual break load of 75% SDMBL.
Ropes should retire when they reach a residual break strength of 75% of SDMBL!

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