The Marine Safety Forum has published the following safety flash regarding an incident in which a helicopter aborted an approach to a fixed installation because a supply vessel was positioned inside the ‘go around’ and take-off flight path.
Even though an engine failure is a rare and unlikely event, helicopters are always flown so that they can suffer an engine failure and safely ‘fly-away’ on its remaining engine. If a helicopter suffers a single engine failure at low speed (for example during the take-off and landing), then it needs to ‘dive’ on the speed and is likely to use all of the height between it and the surface to achieve this. Therefore, if a vessel is positioned within the helicopters ‘go-around’ flight path then there is a risk of collision during a single engine ‘go-around’.
The safety flash – including illustration – can be downloaded from marinesafetyforum.org/upload-files//safetyalerts/msf-safety-flash-15.08.pdf