Top > Releases ･ Announcements > Fukushima Daiichi NPS Prompt Report > 2013 > Oil Leakage from Unmanned Heavy Equipment Used for Debris Removal in Unit 3 Reactor Building at Fukushima Daiichi Nuclear Power Station (Follow-up Information)
This is follow-up information regarding oil leakage from the unmanned heavy equipment, which occurred today (May 18).
The leakage of oil used for the control of the unmanned heavy equipment was inspected using a monitoring camera, and we have estimated the leakage area to be approx. 5m x 4m, and the leakage amount to be 20L.
As to the leakage source, it is currently considered that the leakage was caused by coming off of a control hose at the front end of a hydraulic cutter of the unmanned heavy equipment. We will find details later.
The unmanned heavy equipment has been placed on the gantry installed near the upper part of Unit 3 Reactor Building. Thus, the oil has been spreading on the gantry, which is sufficiently far from the spent fuel pool. Therefore, the oil does not affect the spent fuel pool.
How to treat the leaked oil is under consideration.
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