When Silence Costs a Ship: The Steering Gear Flooding Incident of January 2023

A critical look at how a neglected bilge alarm and a disabled hatch sensor pushed a vessel to the brink — and the lessons every aspiring mariner must carry.

In the demanding world of merchant seafaring, a lapse in judgment lasting mere minutes can cascade into a crisis spanning days. The incident that unfolded on January 4, 2023, aboard a vessel navigating heavy weather off the Mumbai coast is a sobering testament to this reality — and a case study that every deck officer, marine engineer, and rating aspirant must study closely.

Incident Summary

At 0440 hrs on 04/01/2023, the steering gear compartment bilge high-level alarm was activated. Upon inspection, the compartment was found flooded with all azimuth system equipment submerged up to the upper gearbox level, resulting in total loss of propulsion.

The Chronology of a Crisis

Understanding how a manageable alarm escalated into a full salvage operation requires a careful reading of the timeline. Every hour that passed without decisive action compounded the danger.

  • 0343 hrs — The Alarm Sounds
The bilge alarm of the steering compartment activated in the Engine Control Room (ECR). The duty engineer acknowledged the alarm — but took no corrective action. An attempt to enter the steering compartment was reportedly aborted due to heavy weather. Critically, neither the Chief Engineer nor the Wheelhouse was informed.
  • 0440 hrs — Flooding Confirmed
Nearly an hour later, the vessel reported that the steering gear compartment bilge high-level alarm had been activated again. Physical inspection confirmed catastrophic flooding. All azimuth thruster equipment up to the upper gearbox was submerged. Pumping operations began immediately and bow thrusters were engaged for maneuvering.
  • 0800 hrs — Propulsion Fails
The wheelhouse reported erratic behavior of the pitch system on the starboard azimuth thruster. An emergency stop was pressed. The port main engine had already been shut for routine maintenance. Attempts to engage both main engines with the azimuth thrusters failed. Ship’s staff entered the compartment and found water ingress up to 1.5 metres.
  • 04–05 Jan — Salvage Mobilized
A salvage tug was mobilized on 04/01/2023 but logistics delays meant it could not depart Mumbai port until 05/01/2023 at approximately 0700 hrs.
  • 07 Jan, 0115 hrs — Tug Arrives
The salvage tug reached the stricken vessel after continuous pumping had reduced the water level considerably. Towline was connected at 0212 hrs, and towing of both the vessel and barge commenced. Position reports were forwarded to MRCC every two hours.
  • 11 Jan, 2200 hrs — Safe Harbor
After seven grueling days, the vessel reached Mumbai harbor under tow. A crisis that began with an unattended alarm ended with a week-long salvage operation.
 

The Root Cause: A Disabled Alarm and a Culture of Silence

Investigation revealed that water ingress had occurred through the port side booby hatch of the Steering Gear Compartment — which had been left open. More alarmingly, the alarm indication for this booby hatch had been deliberately disabled by the ship’s staff, leaving no indication in the ECR that the hatch was open.

This incident is not simply about a flooded compartment. It is about a chain of decisions — each individually small, cumulatively catastrophic — that eroded the vessel’s defenses layer by layer.

Lessons for Every Mariner and Aspirant

At MerchantNavyDecodedJobs, we believe that casualty knowledge is career knowledge. Every aspiring officer and engineer must internalize what went wrong here — because these are precisely the scenarios examined in oral examinations, competency assessments, and real shipboard emergencies.

Lesson 1 — Acknowledge is not the same as Act

Acknowledging an alarm stops the audible alert — it does not resolve the underlying condition. A duty engineer who acknowledges without investigating has only silenced the warning, not addressed the hazard. Always investigate. Always log. Always inform.

Lesson 2 — Heavy weather is not an excuse to defer inspection

Adverse sea conditions heighten, not reduce, the urgency of responding to safety-critical alarms. If safe entry to a space is genuinely impossible, that must be communicated immediately to senior officers and watchkeepers — not used as a reason to take no further action.

Lesson 3 — Disabling alarms is never acceptable

The disabling of the booby hatch alarm indicator was a fundamental breach of safety management. Alarms exist as the ship’s immune system. Bypassing them — even temporarily — removes the early warning that allows crews to prevent minor issues from becoming major casualties.

Lesson 4 — Watertight integrity must be verified before departure

Watertight integrity checks are not box-ticking exercises. Every door, hatch, and air vent must be confirmed closed, operational, and alarm-ready before a vessel sails for open sea. This is the first line of defense against flooding — and it had failed here before the voyage even progressed.

The Corrective Actions Mandated

Following the investigation, a set of mandatory corrective measures was prescribed for all vessels:

  • Watertight integrity to be physically checked and logged before every sea departure. A copy of the inspection report is to be submitted to the DPA/ADPA for verification.
  • All watertight door and booby hatch alarm monitoring systems must be activated and confirmed operational at all times during a voyage.
  • The inspection cover of the watertight compartment below the shark jaw/towing pin must be properly secured prior to departure.
  • No leakage from the shark jaw or towing pin into the steering room is acceptable. Regular inspection of all air vents in the steering room is mandatory.
  • DG Shipping, classification society, Indian Coast Guard, and MRCC must be informed immediately upon any major safety incident. Regular position reports are mandatory during any distress or salvage situation.
 

If you are preparing for your pre-sea training, MMD oral examinations, or simply building the foundation of your seafaring knowledge, understanding real casualty cases like this one is invaluable. At MerchantNavyDecodedJobs, we decode the complexities of a career at sea — from how to join, to how to survive and advance in the industry. Explore our resources for officers, engineers, and rating aspirants alike.

Final Word

A single acknowledged-but-unattended alarm at 0343 hrs. A disabled hatch indicator. A compartment left uninspected. These were not dramatic failures — they were quiet ones. And quiet failures, aboard a ship at sea, can be the most dangerous of all.

Every officer on watch, every engineer on duty, and every rating standing rounds carries the safety of the vessel and all aboard. The sea does not offer second chances easily. But study, vigilance, and a commitment to safety culture can ensure that the lessons of others do not have to be learned at personal cost.

Stay safe. Stay informed. Sail with knowledge.

Published by Aditya Kumar at MerchantNavyDecodedJobs.com — Your trusted guide to a career at sea.
Source: DG Shipping Casualty Investigation Report | Incident Date: 04 January 2023