December 11, 2002
Tokyo --- Tokyo Electric Power Co. (TEPCO) today submitted the final report
concerning the problem of leak tests on the primary containment vessel at
Fukushima Daiichi Nuclear Power Station Unit-1 to the Minister of Economy,
Trade and Industry.
As soon as the suspicion had arisen that air was being injected into the
primary containment vessel, TEPCO asked an outside team consisting of five
independent expert lawyers to investigate the situation. The investigation
lasted about two months and after its completion the team reported to TEPCO
on its findings. TEPCO's report demonstrates its recognition of the
findings of the investigation team, and describes the measures it will take
in the future.
The conclusions of the investigation team are the same as those in the
interim report issued on October 25:
1.It was confirmed that dishonest acts had taken place, including injecting
air into the primary containment vessel in order to lower the leak rate
while TEPCO's workers were involved in the 15th and 16th periodic
inspections at Fukushima Daiichi Station's Unit-1.
2.Apart from the above-mentioned acts at Fukushima Daiichi Station's Unit-1
no dishonest practice was found in any other leak tests conducted in the
past at any nuclear power plants.
TEPCO would like to express its sincere apologies, both to those in the
vicinity of its nuclear power stations and to all members of society, for
conducting dishonest practices during the government's regular nuclear
We, TEPCO, will make strenuous efforts to prevent reoccurrence of such
errors and to regain public confidence in our company and in nuclear power.
We will do this by creating "a system that will never allow workers to
engage in dishonest practice" and "a climate in which workers will never
engage in dishonest practice"