Answer
The Aerodynamic & Hydrodynamic Principle
Losing heavy container weight from the Starboard side shifts the vessel's overall transverse Center of Gravity (G) immediately toward the Port side. This shift creates a transverse uprighting imbalance, generating a permanent static list to Port. Furthermore, the remaining stacks on the Port side act as a massive wind sail, exacerbating the port list if winds originate from Starboard.
Chief Engineer's Immediate Action Protocol
[Hull & Engine Safety Verification] ──> [Loadicator Analysis] ──> [Machinery Protection] ──> [Controlled Correction]
Verify Hull & Machinery Space Integrity: Immediately check engine room bilges and order a comprehensive sounding of all ballast tanks, void spaces, and the duct keel on the Starboard side. Ensure the tearing away of container structural lashings did not rupture the side shell plating or deck structure.
Execute Loadicator Evaluation: Input the estimated weight and tier position of the lost containers into the loadicator. Determine whether the port list is a stable, positive stability list (due to shifted $G$) or an Angle of Loll caused by a negative $GM$ induced during the container loss incident.
Machinery Ingress and Suction Safeguards: Monitor the main engine sump level, generator lub oil levels, and purifier suctions closely. A severe list can cause air entrainment or loss of suction in critical machinery. Ensure your sea suctions are switched to the low (submerged) side if necessary.
Controlled Ballast Operations (Never Rashly Counter-Ballast):
If the loadicator confirms a negative GM (Angle of Loll), filling a tank on the high side (Starboard) will cause the vessel to violently flop to the other side, potentially causing structural failure or capsizing. You must first eliminate free surface effects and ballast a low tank to bring G below M.
If the list is confirmed to be a stable, positive stability list due purely to shifted G, coordinate with the Master to perform a highly controlled counter-ballasting operation using low-center tanks to bring the vessel back upright while minimizing the overall vertical Center of Gravity (KG).