Alternative 3
Due to the ship owner’s arguments about the serious commercial consequences of not getting the ship chartered, you arrive at a compromise with the client whereby you report the incident but accept a few months delay in repair, so that the ship may leave port and get chartered.
Alternative 1
In order to save putting DNV in a difficult position – since the previous classification surveyor should ideally have discovered the damage in the tank – you choose NOT to report the matter.
Alternative 2
You choose to carry out your job, regardless of any dissatisfaction the client might have with the DNV class survey, and report the damage to the tank.