The Black Box Stops Waiting for an Accident

Every ship carries a voyage data recorder. The VDR. It records the radar picture, the chart display, position, heading, speed, rudder, engine orders, alarms and the microphones on the bridge. Voices included.

Normally nobody opens it. It sits there for years. You pull the data after a collision, a grounding or a death.

GTT Marine, which owns Danelec, has now launched BOQA, short for Bridge Operations Quality Assurance, part of its Safety Insights product. It reads the VDR continuously and looks for passing another vessel too close, excessive rate of turn, excessive rudder angle, odd heading changes, sustained heel, too much speed in shallow water and severe wind. It weighs each event against context: closest point of approach, vessel length, speed, water depth. It filters over a period so one odd moment does not become an alarm.

"By leveraging that same foundation to provide safety insight while operations are still going right, BOQA ensures that every voyage becomes an opportunity to improve the next one," said Christian Kock, executive vice president for safety at GTT Marine.

Be clear about one thing: as described, this is rules, not AI. It checks recorded values against thresholds. We are running it anyway, because the interesting part is not the technology. It is what changes when the box changes job.

The black box was accepted by crews on a specific understanding. It is there for accidents. Nobody listens unless something terrible happens. Turn it into a weekly report and you have changed the deal without asking anyone. That is the camera argument again, only this time the sensor is already fitted, already recording, and already listening to what the master says to the pilot.

And before any of this is worth building on, there is a question we would put to every superintendent reading this. Does your VDR actually work? Not on the annual test certificate. In practice. Are all channels mapped after the last radar change. Is the bridge microphone still where it should be. Did the last download complete. Anyone who has tried to pull VDR data in anger knows the answer is often no. Clever analysis on top of a half-recording ship is worse than nothing, because it produces a confident report about a vessel the system cannot really see.

No customers named, no figures, no false-alarm rate, and no statement of who inside the company gets to read the output. [Smart Maritime Network]

This story is part of the Maritime AI Digest of 6 September 2026.