With regard to the opening and closing of watertight integrity appliances not fitted with a remote operating control or alarm system, what must the Master or person in charge of a MODU enter in the logbook?
• Watertight integrity appliances on Mobile Offshore Drilling Units (MODUs) • Logbook requirements in 46 CFR for doors, hatches, and similar closures without remote controls or alarms • Master or person in charge responsibilities for documenting status of critical safety equipment
• Ask yourself: what single piece of information would be most important to reconstruct the safety status of the unit if an incident occurred involving flooding? • Consider which choice would help an inspector or investigator understand why the watertight boundary was changed, not just how it was operated. • Think about which detail must be written every time an appliance is opened or closed, and which details might be impractical to log for every operation.
• Verify in 46 CFR language that focuses on "shall be entered in the logbook" regarding watertight doors, hatches, and other appliances on MODUs. • Check which option represents information that is unique and essential for each individual operation (open/close event), rather than generic or occasional information. • Confirm that the requirement applies specifically to appliances not fitted with a remote operating control or alarm system, and see what associated log entry is mandated.
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