We are announcing the status of major inspections and restoration works and nonconformances 
at TEPCO's Kashiwazaki-Kariwa Nuclear Power Station after the Niigata-Chuetsu-Oki Earthquake. 

Inspection/Restoration Status

 ◇ Inspection and restoration completed between December 25, 2009 to January 7, 2010 
    (Completed on the following date) 

   - Unit 1 Main transformer inspection (Carrying in and installation work):
       December 25, 2009  
   - Unit 1 House transformer inspection (Carrying in and installation work):
       December 25, 2009
   - Unit 1 Excitation transformer inspection (Carrying in and installation work):
       December 25, 2009
   - Unit 5 Main transformer inspection (Carrying in and installation work):
       December 25, 2009
   - Unit 5 House transformer inspection (Carrying in and installation work):
       December 25, 2009
   - Unit 5 Excitation transformer inspection (Carrying in and installation work):
       December 25, 2009
   - Unit 7 General integration inspection:
       December 28, 2009
   - Restoration work of filtrate tank and demineralized tank on Arahama-side 
     (Restoration work of No.1 demineralized tank):
       December 26, 2009
   - Construction of seismic-isolated essential buildings:
       December 25, 2009

 ◇ Inspection and restoration to be commenced between January 8 to January 14, 2010 
    (To be commenced on the following date) 

   - UUnit 1 Primary containment vessel closure:
       January 9, 2010  
   - Unit 1 System functional test (Selected control rod insertion inspection):
       January 12, 2010  
   - Unit 1 System functional test (Functional test of turbine bypass valve):
       January 13, 2010  
   - Unit 5 System functional test (Functional test of turbine bypass valve):
       January 13, 2010  

 ◇ Work Schedule of Major Inspection/ Restoration from January 3 to January 30, 2010

   - Work Schedule of the Main Inspection/ Restoration of the Kashiwazaki-Kariwa Nuclear 
     Power Station in Response to the Niigata-Chuetsu-Oki Earthquake (during 4 Weeks)
                                                                          ....Appendix

(Reference) 
Nonconformances Found in the Inspection and Restoration Works Performed after the Niigata-
Chuetsu-Oki Earthquake

 Based on the "Public Announcement Regarding Nonconformance Found in the Inspection and 
 Restoration Works Performed after the Niigata-Chuetsu-Oki Earthquake", the Tokyo Electric 
 Power Company, Incorporated (TEPCO) provides this announcement containing incidents 
 information reported from December 24, 2009 to January 6, 2010. 

 ◇ Incidents Information (relating to the Chuetsu-Oki Earthquake)


    <Reports from December 24, 2009 to January 6, 2010>


 ◇ Other Findings

   - Unit 6 had been shut down since December 26, 2009 in order to investigate the cause 
     of the malfunction in the control rod position detector found on December 23, 2009.  
     The investigation and restoration was completed and the unit was restarted on January 
     6, 2010.  In order to enhance the reliability of relevant position detectors, 
     manufacturing process such as coil connection and insulation for the position detectors 
     that will be replaced during the next regular outage will be executed based on a revised 
     procedure that reflects lessons learned from this incident.

Appendix: Work Schedule of the Main Inspection/Restoration of the Kashiwazaki-Kariwa Nuclear 
          Power Station in Response to the Niigata-Chuetsu-Oki Earthquake (during 4 Weeks)
                                                                               (PDF 23.2KB)