Within how many hours prior to entry should the main steering system be tested?

The main steering system should be tested within 12 hours prior to entry to ensure that it is fully operational and meets safety standards. This timeframe is crucial for several reasons. Firstly, it allows enough time for any necessary adjustments or repairs to be made should issues be identified during the test. Secondly, it helps to guarantee that the system is functioning properly under conditions that closely match what will be experienced during the planned operation.

Testing the steering system too far in advance could lead to situations where changes in equipment condition, especially in marine environments, could occur, potentially compromising safety. A 12-hour timeframe strikes a balance between readiness and allowing for sufficient oversight of the equipment, ensuring that technicians can verify the safety and reliability of the steering before the vessel is put into operation.