Headquarters Daily Report

                         AUGUST 18, 1997

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                    REPORT             NEGATIVE            NO INPUT
                    ATTACHED           INPUT RECEIVED      RECEIVED

HEADQUARTERS        û                                      
REGION I            û                                      
REGION II                              û                   
REGION III                             û                   
REGION IV                              û                   
PRIORITY ATTENTION REQUIRED  MORNING REPORT - REGION I  AUGUST 18, 1997

Licensee/Facility:                     Notification:

Connecticut Yankee Atomic Power Co.    MR Number: 1-97-0045
Haddam Neck 1                          Date: 08/18/97
Hartford,Connecticut                   Telephone 8/17/97 SRI              
Dockets: 50-213
PWR/W-4-LP                            

Subject: TEMPORARY LOSS OF SPENT FUEL POOL COOLING                       

Discussion:

With the plant permanently shutdown for decommissioning and the reactor  
defueled, a lightning strike at the station at 2:07 a.m. on 8/17/97      
caused the loss of spent fuel pool cooling and tripped several plant     
components.  The plant equipment affected included the trip of the       
operating A spent fuel pool (SFP) cooling system pump, the temporary loss
of the plant computer and security lighting, the tripping of several     
ventilation system fans (control room, switchgear room, spent fuel       
building, turbine building, administration building), and the tripping of
the operating A service air compressor and the sample pumps for stack    
high range monitor RM-14B.  The security diesel generator started and    
assumed loads.  The plant emergency diesels did not start and were not   
required since there was no loss of the 4KV or 480 volt emergency buses. 
                                                                         
                                                                         
Plant operators and security personnel responded to the event using      
abnormal and emergency response procedures to identify offnormal         
equipment conditions and to restore normal equipment operation. An       
undervoltage (uv) lockout relay tripped and caused the isolation of      
service water to the SFP cooling system.  The plant computer was         
restarted and functional by 2:21 a.m. Operators restarted the A SFP      
cooling pump, reset the timed relay, and restored cooling to the SFP by  
2:25 a.m.  SFP temperature remained stable at about 100 degrees F.  The  
operators reviewed plant equipment conditions and restored equipment     
affected by the voltage transient.  Plant electricians assisted in a     
systematic review of all electrical buses and panels.  No equipment      
damage was identified.  All equipment affected by the transient was      
restored. Licensee long term review and followup of the event was in     
progress as of August 18.                                                

Regional Action:

The SRI responded to the site to verify plant status and review licensee 
actions.  Region I will follow the licensee's event response.  This      
information is current as of 8:00 a.m. on August 18.                     

Contact:  W. Raymond                 (860)267-2571
          E. Conner                  (610)337-5399
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