Due to the affect of tsunami accompanied by the earthquake on March 11, 
2011, the relevant events under the Act on Special Measures Concerning 
Nuclear Emergency Preparedness occurred at each of Units 1, 2 and 4 in 
Fukushima Daini Nuclear Power Station. On March 12 2011, the declaration 
of a Nuclear Emergency Situation was issued by the Prime Minister. 
After that, emergency response measures were taken such as restoring 
electric motors and recovering the function of residual heat removal pumps. 
Cold shut down has been achieved for each of the unit by March 15. 
Thereafter, those emergency response measures had been continuously taken, 
and also TEPCO endeavored to maintain stable cold shut down status of the 
plant, multiplexing power supply function and residual heat removal 
function. As a result, on December 26, Nuclear Emergency Situation was 
lifted by the Prime Minister, and TEPCO moved onto the phase to implement 
the post nuclear disaster incident measurement 
Implementing those countermeasures, TEPCO has established the restoration 
plan based on the nuclear plant operator's anti- disaster measures 
operation plan. TEPCO submitted the plan to the Minister of Economy, Trade 
and Industry, and the governors of Fukushima prefecture, Naraha town, and 
Tomioka town on January 31, 2012. 
TEPCO will continue to restore facilities for the cold shut down of the 
plants etc based on this plan to improve the reliability further. 
 
We announce the plant status as of 3:00 pm today per the attachment 
(The updates are underlined). 
 
○ Inspection of inside of the primary containment vessel of Unit 3 
 At 10:08 am on February 14, for the purpose of determining soundness of 
 reactor primary containment vessel of unit 3 and internal facilities, 
 airlock* for the workers was opened and started visual inspection. 
 We plan to conduct same inspection for unit 2 accordingly. 
 
   ·Visual inspection for Unit 4 has been completed (the result was 
    announced on December 21, 2011) 
   ·Visual inspection for Unit 1 is under way (start of inspection was 
    announced on December 27, 2011.) 
 
 * airlock for the workers 
 hatch to enter into the primary containment vessel 
 

 
Appendix: TEPCO Plant Status of Fukushima Daini Nuclear Power Station 
                                                         (PDF 13.5KB)