Improper use of heaving line
What happened?
During a mooring operation, vessel crew were found to be using a 4 ton shackle attached to a heaving line (instead of proper “monkey fist”).
What went wrong?
- The crew did not have an available heaving line with a “monkey fist”.
What actions were taken?
- Risk assessment for mooring operations to be reviewed.
- A check to be included to ensure that a sufficient number of heaving lines with “monkey fist” are available. In this case, at least 9 heaving lines were to be kept on the vessel (2 for use at each mooring station plus 1 spare).
Members may wish to refer to:
Safety Event
Published: 17 December 2019
Download: 
IMCA SF 30/19
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