This casualty occured wile the Skaubay was attempting to come alongside Banker,
always a dicey operation.
The NRC blames lack of communication, but it is not clear
what communication could have done in this case.
Visibility was good.
Assuming the somewhat confused and confusing NRC summary is correct,
the screw up was early in the approach process.
The Skaubay must have been going more or less south
(NRC says at 10 kts) and turned toward the west
to come parallel to the Banker.
But them why would the Skaubay reduce rudder at the last minute
(maybe an attempt to pass astern).
Anyway looks like a simple misjudgement
on the part of the mooring master.
The amazing thing is that it does not happen more oftem
If ships were equipped with cylinder cut-out,
the mooring could be done at lower speeds.
If ships were twin screw, they would have far more
manueverabilty at these speeds.
Some reports say Banker was hit in "forward cargo tank"
but this makes no sense at all.
USCG says 900 barrels BFO spilled,
There is a stark contrast between the quality
of US reporting and the UK/Australian Investigation reports.
This spill is double counted in the MSIS database.