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.  

1. Inspection/Restoration Status

 ○ Inspection and restoration completed between March 14th to March 19th, 2008.
    (Completed on the following date) 

  • Unit No.2 Fuel and control rod inspection (visual inspection of control rod):
      March 17th 
  • Unit No.2 Fuel and control rod inspection (inspection of spent fuel pool rack 
    etc.): 
      March 19th 
  • Unit No.5 Excitation transformers inspection (internal inspection): 
      March 17th 
  • Unit No.6 Fuel and control rod inspection (visual inspection of fuel): 
      March 17th 
  • Unit No.7 Reactor well inspection (confirmation of leakage): 
      March 15th 
  • Restoration work for solid waste storage facility (Drum soundness verification 
    work): 
      March 17th 

 ○ Inspection and restoration to be commenced between March 20th to March 26th, 2008
    (To be commenced on the following date)  

  • Unit No.2 Pressure suppression chamber inspection: 
      March 25th
  • Unit No.2 House transformer (2A, 2B) inspection (preparation for transportation 
    into the factory): 
      March 24th 
  • Unit No.3 Pressure suppression chamber inspection (preparation): 
      March 20th 
  • Unit No.3 Fuel and control rod inspection (visual inspection of channel box): 
      March 20th 
  • Unit No.3 Stack inspection (inspection for substructure of piles):
      March 24th 
  • Unit No.4 Fuel and control rod inspection (visual inspection of fuel)
      March 21st 
  • Unit No.5 Fuel and control rod inspection (visual inspection of control rod):
      March 24th 
  • Unit No.6 Reactor internal pump input transformer inspection (installation):
      March 26th 
  • Unit No.7 House transformer (7A, 7B) inspection (preparation for carrying in):
      March 21st 
  • Unit No.7 House transformer (7A) inspection (installation):
      March 24th 
  • Unit No.7 Reactor internal pump input transformer inspection (carrying in):
      March 21st 
  • Unit No.7 Reactor internal pump input transformer inspection (installation):
      March 25th 
  • Unit No.7 Stack inspection (internal inspection):
      March 24th 
  • Outdoor fire protection system piping to be placed above ground, installation 
    of fire protection tank, etc. (Ohminato-side: work on installing fire protection 
    system piping  above ground): 
      March 21st 

 ○ Work Schedule of Major Inspection/Restoration from March 16th to April 12th, 2008

  • 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

2. 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 March 13th to March 18th, 2008.

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


 <Reports from Mar. 13 to Mar. 18, 2008>


 ○ Other Findings 

  • Unit No.7: 
    As for the inspection for forks of the 14th-stage rotor blades of the low-pressure 
    turbine (C), damage was found on a part of one rotor blade on March 3rd, 2008. 
    Detailed inspection to verify the soundness of the relevant part has been conducted 
    since March 7th, 2008, and based on visual inspection, no additional damage was 
    found (announced on March 13, 2008)
    Subsequently, non-destructive inspection was conducted for forks of 151 rotor blades 
    except for the one already found to be damaged. As a result, indications were found 
    on the fork of 17 rotor blades. Investigation on the cause of the indication will be 
    conducted as well as visual and non-destructive inspection for other forks of the 
    14th-stage rotor blades of the low-pressure turbine (A), (B) and (C).

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 197KB)