At 0727 on 25 June 2020, the Isle of Man registered ro-ro freight ferry Arrow grounded in thick fog while entering Aberdeen Harbour. During its port approach, a pilot exemption certificate (PEC) holder provided by the vessel’s charterer was navigating by radar and steering the vessel.
The vessel encountered the thick fog a few minutes before
it entered Aberdeen’s 70m wide Navigation Channel, and with limited support
from the bridge team, the PEC holder
became overloaded. Consequently, while attempting to correct a deviation to the
north of the planned track, he over corrected to the south. The over-correction
was not noticed by the bridge team in time to avoid the grounding.
After grounding, the vessel began to list significantly in the
falling tide. After confirming no water ingress into the hull, with the
assistance of a tug, the master used Arrow’s engines and bow thruster to
refloat the vessel. There were no injuries or pollution but there was
significant damage to the hull.
Safety issues
·
Arrow’s bridge team was not fully prepared for pilotage in
restricted visibility. There was no effective shared mental model of the
pilotage plan and the vessel’s progress along it.
·
The level of support provided to the PEC holder
by the bridge team was poor.
·
Navigation techniques used did not provide Arrow’s bridge team
with an accurate view of the available safe water in the Aberdeen approach
channel.
·
Poor bridge ergonomics and limited electronic chart system
capabilities meant that the PEC holder
was navigating by use of radar alone.
https://assets.publishing.service.gov.uk/media/60dc6ba0d3bf7f7c389ab2c0/2021-08-Arrow-Annexes.pdf
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