After conducting a boat drill on a mobile offshore drilling unit, what must the Master or person in charge enter in the in the logbook?

Correct Answer: Option B — Any inoperative equipment and the corrective action taken

46 CFR 109.435 requires that any inoperative equipment discovered during a boat drill, along with the corrective actions taken, be entered in the logbook. This ensures accountability for maintenance and verifies that all lifesaving appliances are fully functional for emergency deployment.