All of Tranz Metro's Matangi trains are being pulled from service on the Wellington rail network this weekend to enable maintenance crews to address a 'minor' potential electronic earthing problem.
KiwiRail manager Deborah Hume told said the new Korean made units would be pulled from service, purely as a preventative measure.
She described the maintenance work to be undertaken as 'minor' and referred the Dominion Post to her PR department for further comment.
Responding to questions, a KiwiRail spokeswoman said Tranz Metro decided the best course of action was to pull all the Matangi trains in for maintenance this weekend for a routine "quick job" on all of them.
The spokeswoman confirmed the problem involved a 'minor' potential electronic earthing issue.
She also said there was no imminent safety risk for passengers riding the trains.
Normal Tranz Metro services would not be disrupted as the old GANZ units would fill in the Wellington metropolitan network this weekend, the spokeswoman said.
A KiwiRail staff member, speaking on condition of anonymity, said the problem involved 'earth straps' on the new trains.
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