Kuroshio troubles again

The Mainichi evening news paper wrote about the express train named "Kurosio" again that belongs to JR West Japan Co.
Today around 5minutes past 11 AM at Shirahama St. in Katada Shirahama cho Wakayama pref. 14th Kurosio bound for Shin Osaka 6 consolidated was cancelled because the driver of the Limited Express had found out the defect of the speed sensor. In last December 2 trains were canceled because of the similar troubles. If the speed sensor were out of order, the pendulum adjust control system and emergency train stop device would not be activated.
JR West Jp Co. says the cause of the trouble is now under inspections including those in last December's ones.
Specially invented newer device like the pendulum adjusting system may have some tendency to have some troubles because of the complicated constructions with not only mechanically but also electrically, but the establishment for the safety is the first.
So enough inspection, experiments and preventions must be prepared before the Kurosio train begins to run again for business.