Headquarters Daily Report

                         APRIL 10, 1998

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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 III  APRIL 10, 1998

Licensee/Facility:                     Notification:

Commonwealth Edison Co.                MR Number: 3-98-0027
Dresden 3                              Date: 04/10/98
Morris,Illinois                        ENS PHONE CALL 34039               
Dockets: 50-249
BWR/GE-3                              

Subject: UNIT 3 REACTOR SCRAM                                            

Discussion:

On April 9, the licensee reported that Dresden Unit 3 scrammed from 100  
percent power when all four main steam line isolation valves went closed.
The cause of the isolation was unknown although a « group I isolation    
signal had been inserted as required by Technical Specifications when a  
high steam line flow Barton switch failed. Repair work for the switch was
in the planning process at the time. Following the scram, equipment      
performed as expected, however, a high water level in the reactor        
appeared to have put water into the high pressure coolant injection      
system turbine steam lines and the system was declared inoperable.       

Regional Action:

The SRI and resident inspector responded to the site. A special          
inspection team was dispatched to the site and followup activities are in
progress.                                                                

Contact:  M. RING                    (630)829-9703
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