Question 1

While testing a piece of machinery following a repair, you discover an unrelated defect — in Arvia's case, a door release key that wouldn't operate. What should this discovery trigger?

Accepted Answer

Pausing to reassess the task and the defect together — an unexpected equipment fault discovered mid-task is a signal that something about the situation isn't fully understood yet, and working around it can introduce new risk The technician on Arvia worked around the deck 12 door release defect by going up to deck 14 instead — a reasonable-seeming adaptation that put him in a different, unanticipated position relative to the lift's automatic re-arming. An unexpected defect discovered mid-task is exactly the kind of signal that should trigger a pause and reassessment, not a workaround and continuation.

Question 2

You're draining a thermal oil system that was running normally a short time ago. Before opening the drain point, what should you confirm?

Accepted Answer

That the system has cooled and depressurised, and you are positioned clear of the drain point's discharge path On the dredger MV Amazone, two crew members draining a thermal oil system after months of contamination were sprayed with hot oil, suffering severe burns. The investigation found company procedures lacked clear instructions for safe drainage — confirming the system has cooled and depressurised, and standing clear of the discharge path, are essential before opening any drain point on a hot oil system.

Question 3

A thermal oil system has been contaminated and needs draining for cleaning. The written procedure tells you to open the drain valve but doesn't specify a cooling-down period or PPE. What should you do?

Accepted Answer

Treat the gap as a hazard in its own right: apply a suitable cooling/depressurising period and full PPE before proceeding, and raise the procedure gap with the Chief Engineer The FEBIMA investigation into the MV Amazone incident found that although the crew followed company procedures, those procedures lacked clear instructions for safely draining a thermal oil system. A procedure that's silent on cooling time and PPE for a hazardous task is a gap to be closed before the job starts — not a green light to skip those precautions.