Damage Stability Consideration
Piping serving tanks and dry spaces, where installed within zones of assumed damage under damage stability conditions, is also to be considered damaged. Damage to such piping is not to lead to progressive flooding of spaces not assumed damaged. If it is not practicable to route piping outside the zone of assumed damage, then means are to be provided to prevent progressive flooding. Such means, for example, may be the provision of a remotely operated valve in the affected piping. Alternatively, intact spaces that can be so flooded are to be assumed flooded in the damage stability conditions.
In addition, where open ended piping systems are located below the bulkhead deck and penetrate watertight subdivision bulkheads, means operable from above the bulkhead deck are to be provided to prevent progressive flooding through those piping systems which remain intact following damage to the vessel.