Question 1

A vessel's standard post-manoeuvre debrief currently only discusses what went wrong, when something did. What change would make the debrief process more genuinely Safety-II aligned?

Accepted Answer

Routinely asking, even after manoeuvres that went entirely smoothly, "what did we notice and adjust for that kept this routine?" — deliberately surfacing the small anticipations, monitoring, and adjustments that prevented normal variability (weather quirks, traffic, equipment behaviour) from becoming a problem, not just discussing failures when they occur This is the practical, implementable version of the Safety-II principle for a bridge team's actual routine — a small, deliberate question added to every debrief, not just the ones following a problem, is what turns "studying success" from an abstract concept into an actual habit.

Question 2

During a berthing approach, an OOW notices a tug line has gone slacker than expected for the current manoeuvre phase and mentions it to the Master, who confirms the tug is repositioning and adjusts the plan slightly to account for the temporary reduced assistance. No incident occurred. What does this exchange demonstrate?

Accepted Answer

The "Monitor" resilience capacity in practice — the OOW noticed a subtle change in a system being relied upon (the tug line) and raised it before it became a problem, allowing the plan to be adjusted proactively rather than reactively; this kind of small, easily-overlooked observation is exactly what Safety-II asks teams to value and reinforce This is a clean example of why Safety-II asks teams to actively study uneventful moments — the value here is entirely in the noticing and the small adjustment, neither of which would appear in an incident log under a Safety-I-only approach, yet both are exactly the behaviour worth deliberately reinforcing.

Question 3

Before unberthing, the Master checks the tidal current tables and notices the current will turn during the planned manoeuvre window, then deliberately adjusts the timing of letting go to avoid the turn happening mid-manoeuvre. The unberthing proceeds smoothly. What resilience capacity does this best illustrate?

Accepted Answer

"Anticipate" — the Master looked ahead at a known, predictable future change (the tide turning) and adjusted the plan before it could interact unfavourably with the manoeuvre, rather than discovering the tide had turned mid-manoeuvre and having to react to it in real time Consulting the tide table is routine, but the deliberate act of using that information to actively reshape the timing of the manoeuvre — rather than just being generally aware of it — is what makes this a genuine example of the Anticipate capacity rather than just box-ticking.