A recent marine casualty investigation of a shipboard fire onboard a U.S. flagged vessel in the Hampton Roads Captain of the Port (COTP) zone raised serious concerns with regards to carbon dioxide (CO2) fire extinguisher servicing. During shipboard fire-fighting operations a crewmember attempted to fight a fire using a 15lb CO2 extinguisher, but the extinguisher failed to properly discharge and only seeped from the neck of the extinguisher. The fire was eventually extinguished by another crewmember using a dry-chemical fire extinguisher. Following this shipboard fire, U.S.