Oil tanker off course when it ran aground in Nunavut

An oil tanker that ran aground in Nunavut waters in 2012 did so because it didn't follow its charted course, says the Transportation Safety Board

The TSB released its report Tuesday on the Oct. 25, 2012 incident involving the MV Nanny.

The MV Nanny was leaving Baker Lake and carrying oil products when it spent two days grounded in Chesterfield Narrows.The area is marked by unlit beacons and allows for little margin of error.

The TSB found that the shipran aground because it had deviated from its charted route.

The ship had to steer off-course to pass another tanker, but thenwas never returned to its proper path. It instead proceeded on a parallel route, about a nautical mile off-course.

"The vessel was steered a bit too much to the east and to the north and eventually it was grounded," saidPierre Murraywith theTSB'sAtlantic bureau.

The TSB says a lack of communication between the bridge officers was a factor in the grounding.

No injuries or pollution were reported. Thedouble-hulled shipwas badly damaged on its hull and rudder but not the tanks.

It was the secondtime the Nanny had run aground in Nunavut waters.In September 2010 the Nanny was lodged in Simpson Strait near Gjoa Haven whilecarrying more than 9 million litres of diesel.

The TSBsays Coastal Shipping Limited, the MVNanny's owner, has since createda "confined waters policy," a checklist of procedures to follow when entering narrow waterways. The board also says lightedbeaconsin Chesterfield Narrows would help ships travel safely through at night.