The cause of the cracked axle could be connected to the postponing of a routine dissasembly of coaster trains that Expoland does typically in Janurary or Februrary. Expoland dissasembles all trains on their roller coasters for close inspection using ultrasonic and magnetic devices to check for wear and tear on trains.

The annual check up was postponed till May 15th due to lack of space cause by the Golden Week holiday period. Expoland remains closed till this Thursday for closer inspection of the coaster. Police continue to search the offices of the operator looking for possible ride operator negligence.

Proceed to The Japan Times for complete story.

Click here for the original story on the derailment of the Fujin Raijin II.