We are announcing the status of major inspections and restoration works (from October 
7th to November 3rd, 2007) and non-conformance at TEPCO's Kashiwazaki-Kariwa Nuclear 
Power Station after the Niigata-Chuetsu-Oki Earthquake.


1. Inspection/Restoration Status

 ○ Inspection and restoration completed between October 5th to 11th, 2007
  • Unit No. 2, 4 and 5 Main exhaust ducts inspection (in-trench duct): 
      Inspection completed on October 5th 
  • Unit No. 4 Turbine building ceiling crane inspection: 
      Inspection completed on October 5th 
  • Unit No. 6 Main transformers inspection (oil extraction/inner inspection): 
      Inspection completed on October 6th
  • Unit No. 7 Reactor head opening:
      Inspection completed on October 8th 
  • Unit No. 7 Discharge canal inspection: 
      Inspection completed on October 10th

 ○ Inspection to be commenced between to October 12th to October 18th, 2007.
  • Unit No. 1 Excitation transformers inspection (oil extraction/inner inspection)
  • Unit No. 2 House transformers (2A) visual inspection preparation 
  • Unit No. 2 Removal of spent fuel pool underwater work platform
  • Unit No. 3 Main transformers inspection (oil extraction/inner inspection)
  • Unit No. 3 House transformers (3A) inspection preparation and inspection 
    (oil extraction/inner inspection)
  • Unit No. 3 Excitation transformers visual inspection
  • Unit No. 3 Restoration for the blowout panel of turbine building
  • Unit No. 7 Main generator inspection 
  • Inspection of low-voltage start-up transformer 3SA
    (oil extraction/inner inspection preparation)
  • Dismantling of Arahama-side arrestor steel tower

 ○ Work Schedule for Major Inspection/Restoration from October 7th to November 3rd, 2007
  • Work Schedule of the Main Inspection/Restoration of 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 October 4th to 10th, 2007 and the occurrence
   status of nonconformances (that have been deliberated) reported from September 27th
   to October 3rd, 2007.

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


 <Reports from October 4th to 10th, 2007>


○ Information on Nonconformances (those related to: the Chuetsu-Oki Earthquake; 
  Grades As, A, B, C, and D; and non-graded)


 ○ Other Findings
    Unit No. 2, 4 and 5 
    Observed creeps of ducts at 9 bellows out of 16 when inspecting the underground part
    of main exhaust ducts. No abnormality found despite deformation of bellows. 
    No radioactive materials detected at the creeps. 

    Unit No. 1 and 3 
    Re-checked the aboveground part of main exhaust ducts and observed 7 cracks at Unit 1.
    No radioactive materials detected at the cracks.  The 7 cracks have been temporarily
    fixed on Oct. 4th. 

Appendix: Work Schedule of the Main Inspection/Restoration of Kashiwazaki-Kariwa Nuclear 
          Power Station in Response to the Niigata-Chuetsu-Oki Earthquake
          (during 4 Weeks)(PDF 57KB)