Tohoku Shinkansen engine oil leak problem caused by initial equipment failure.JR East caused a bolt to come off on an attached device on the engine, which caused damage to the device. This inspection vehicle was manufactured in November of last year, and had only been in use since December last year.

JR East will suspend the use of 25 inspection vehicles of the same type, including this one, until repairs and inspections are completed.. On the 2nd of this month, engine oil leaked from an inspection vehicle near Fukushima Station on the TohokuShinkansen, and the JR East...