KiwiRail could end up like Malaysian Railways with its new Chinese-made locomotives mothballed because faults can't be fixed, Labour says.
The party revealed on Monday that production of the second batch of locomotives ordered by KiwiRail was on hold as the manufacturer tries to sort out faults in those already delivered.
It has documents which list 20 problems experienced since the locomotives started coming into service over the last two years.
MP Clare Curran is now saying the procurement programme is a disaster.
"They were so keen to buy cheap locos they didn't consider what would happen if they were duds," she said.
"The Chinese locomotives had already proven faulty - 15 of 20 of the same class purchased by Malaysian Railways in 2005 were mothballed three years later due to severe technical problems."
Labour is blaming the Government, saying KiwiRail is under-resourced and was forced to accept the lowest tender for the locomotives.
KiwiRail chief executive Jim Quinn says problems with the locomotives are part of the commissioning process and repairs will be completed by next month.
"Every locomotive we've had over the years has had commissioning issues," he said.
NZN