Grounding: BBC Steinhoeft – Pilot Error Was On The Cards

 Accident report, grounding, maritime safety news, pilot, pilotage  Comments Off on Grounding: BBC Steinhoeft – Pilot Error Was On The Cards
Jul 192012
 

view taken from the steering stand position on the bridge. When viewing in line with the forward mast from this point, the left-hand arrow indicates the reference point ashore being viewed, whereas the right-hand arrow indicates the reference point ashore as it would be viewed if one stood on the centreline and took a line of sight with the forward mast.

Pilots cannot know everything about your vessel – lack of critical information on the pilot card, or provided in the master/pilot exchange can put the ship and its crew at risk, as Canada’s Transport Safety Board points out in its report on the grounding of the multipurpose cargo ship BBC Steinhoeft in the South Shore Canal of the St. Lawrence Seaway in March 2011.

Says the TSB report: ”

While Pilot No. 1 was aware of the possibility of a parallax error in navigation due to the offset position of the steering stand, he estimated that error to be about 0.5° and therefore did not compensate for this when giving his navigation orders to the helmsman. The investigation determined that this error was in fact 1.6°.

In navigational areas where tolerances are small, such as in this occurrence, accuracy is of the utmost importance. However, the determination of the parallax error induced by an offset bridge layout is not something that can be accomplished accurately without specific information. In this occurrence, Pilot No. 1 was not provided with such information, and therefore underestimated the extent of the parallax error.”

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