What is the DC closure log?

• A. Log that tracks fittings open/closed that violate current Material Condition
• B. Log of all maintenance tasks
• C. Log of casualties
• D. Log of training completions

Answer: (A)

The main idea is to track watertight integrity by recording which fittings are open or closed in relation to the current Material Condition. The DC closure log is the official record of openings that would violate MATCON, noting the location, status, time, and any required corrective action. This allows the damage control team to quickly identify where breaches exist and prioritize securing them to restore the ship to its designated condition. It isn’t about maintenance tasks, casualties, or training completions, which are tracked in separate logs. For example, if a hatch is left open when the ship is in a given MATCON, that opening is entered in the closure log so it can be closed and the proper condition restored.