A vessel in your fleet has sustained damage due to an insured peril. The damage was identified only during dry docking one year after the incident. Will it be admissible under hull and machinery policy ? However as the damage has not affected the class status of the vessel, you decided not to carry out the repair. Can you file a claim against your policy ? If yes how can the value of such claim be ascertained?

Firstly your question are very unique. ?

If u find any damage after one year the incident it will not admissible under hull and machinery policy and if your vessel class status not affected by this damage and you not carry out the repair u can't claim  file  against your policy,  hull and machinery policy covers the damage under one year if it exceed u not get the claim so better is make the repair of vessel.