What should the DPO do if the port main propeller fails to full ahead pitch during DP operations?

In the event that the port main propeller fails to achieve full ahead pitch during dynamic positioning (DP) operations, the correct course of action for the DP Operator (DPO) is to deselect the failed thruster and inform the engineers. This procedure is critical because it ensures that the DP system can operate with a reduced level of thrust and allows for effective management of the vessel's positioning, thereby maintaining safety.

Deselecting the thruster prevents any erratic or unpredictable behavior that could arise from a failure and allows the DP system to rely solely on the operational thrusters. In doing so, the DPO can effectively manage the remaining operational thrust and maintain the vessel's position.

Informing the engineers is equally important as it allows technical personnel to assess and address the issue with the failing propeller. This communication ensures that the vessel’s crew can work on troubleshooting and determine if there are underlying issues that need attention.

While increasing hydraulic pressure to the propeller could theoretically improve its functionality, it may not be advisable without proper assessment and could further exacerbate the issue. Switching to an alternate power source might not resolve the mechanical failure at the propeller level. Adjusting heading to counterbalance the failure could be a temporary measure, but it does not