Mike Schuler September 15, 2022
The November 13, 2021 incident involved the towing
vessel Baxter Southern, pushing four empty barges, and a BNSF coal
train transiting the track along the shoreline of the Upper Mississippi River.
The train struck a barge that was overhanging the railroad track.
Two locomotives and ten hopper cars loaded with coal
derailed. Six of the derailed hopper cars entered the river. Two train
personnel sustained minor injuries. The collision resulted in $1.9 million in
damages to the locomotive and freight cars. The barge sustained minor scrapes.
During a transit downriver, strong wind gusts made the
situation unsafe for the Baxter Southern to continue the
voyage as planned. Using the vessel’s electronic chart system (ECS), the
captain and pilot identified a location on the riverbank that they believed was
a fleeting area safe to push up against. But neither the pilot nor the captain
clicked an exclamation point symbol on the electric chart, which would have
showed that the area presented a “Railroad Collision and Trackbed Erosion
Risk.”
Baxter Southern Rose Point in nighttime display showing the
area marked by the magenta dashed line and exclamation point (left, annotated
by NTSB) and information contained in the corresponding caution note (right).
Source: Southern Towing Company via NTSB
The pilot pushed the tow onto the riverbank, and three
crewmembers headed forward on the tow to verify the forward-most barge was
clear of the track. While the barge did not cross over either rail, it extended
about a foot over the railroad ties.
When the pilot of the Baxter Southern saw
the light of the approaching train, he attempted to move the tug and tow away
from the riverbank. The train’s engineer activated the train’s emergency brake
when the train was about 300 feet from the barge. The efforts were too late to
avoid the collision.
The NTSB determined the probable cause of the collision was
the tow’s pilot and captain not correctly identifying a caution area on the
electronic chart before deciding, due to the high wind’s effect on the tow’s
empty barges, to push the tow up against the riverbank alongside a railroad
track.
“ECS provide a wealth of navigation information to mariners.
Electronic charting display and information systems (ECDIS) enables users to
obtain more information about a feature by querying through a cursor pick,” the
report said. “There are many features—including warnings and other navigation
information—that can be obtained through a cursor pick that are not specifically
noted in the default chart display. Mariners should ensure they understand all
symbols and applicable advisories identified in their ECS, and owners and
operators should ensure that their crews are proficient in the use of ECS.”
Read the report: Marine
Investigation Report 22/22
For more information about chart symbols, the NTSB says
mariners should refer to U.S. Chart No. 1: Symbols, Abbreviations and Terms used on
Paper and Electronic Navigational Charts or the U.S. Army Corps of
Engineers’ Inland Electronic Navigational Charts.
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου