Headquarters Daily Report

                         JANUARY 23, 1996

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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                                      
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REGION III  MORNING REPORT     PAGE  2          JANUARY 23, 1996

Licensee/Facility:                     Notification:

Commonwealth Edison Co.                MR Number: 3-96-0011
Braidwood 2                            Date: 01/20/96
Braceville,Illinois                    SRI                                
Dockets: 50-457
PWR/W-4-LP                            

Subject: LOSS OF OFFSITE POWER UPDATE (SEE PN # PN-III-96-004 AND        
         EVENT #29852)                                                   


Discussion:

An unusual event was terminated at 3:22 a.m. (CST) on January 20, 1996.  
The event was due to the loss of Unit 2 offsite power on January 18,     
1996. The cause of the event hasn't been determined, but lightning has   
been eliminated as a cause. A seven day repair time is anticipated for   
the damaged breaker that supplies one source of offsite power to the two 
system auxiliary transformers (SATs). The licensee was able to recover   
one of the two Unit 2 SATs. No time estimate has been established for the
repair of the damaged SAT. The recovered SAT is carrying both 4.16       
kilovolt engineered safety feature (ESF) buses and two of the four 6.9   
kilovolt buses. The other two 6.9 kilovolt buses are normally fed from   
the Unit 2 unit auxiliary transformers. The single SAT has the capacity  
to carry all the Unit 2 buses and at least one ESF bus from the other    
unit. Unit 2 remained at 100 percent power. Both units have exited the 72
hour limiting condition for operation.                                   

Regional Action:

The resident inspectors are continuing to monitor the licensee's         
activities.                                                              

Contact:  L.F. MILLER, JR.           (708)829-9629
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REGION IV  MORNING REPORT     PAGE  3          JANUARY 23, 1996

Licensee/Facility:                     Notification:

Texas Utilities Electric Co.           MR Number: 4-96-0013
Comanche Peak 1                        Date: 01/23/96
Glen Rose,Texas                        Senior Resident Inspector          
Dockets: 50-445
PWR/W-4-LP                            

Subject: MANUAL REACTOR TRIP OF COMANCHE PEAK UNIT 1                     

Discussion:

This morning report supplements event notification number 29874 and      
preliminary notification PNO-IV-96-003A which reported a Unit 1 manual   
reactor trip following a loss of feedwater flow on January 22.  The loss 
of feedwater flow occurred when safety-related Elgar Inverter 1V1EC1     
failed during troubleshooting and de-energized Bus 1EC1 which resulted in
all feedwater isolation valves closing.  The inverter failure occurred   
when plant personnel replaced a blown fuse in the DC-DC converter power  
supply card while the inverter was still supplying bypass power through  
the automatic static switch.                                             
                                                                         
The plant computer worked properly during the trip.  Following a review  
of computer information, the licensee noted that Main Feedwater Isolation
Valve (FWIV) 2 stroked closed in approximately 32 seconds which was      
longer than the required stroke time of 5 seconds.  The licensee verified
through testing that FWIV 2 was stroking closed slower than required and 
is continuing to investigate.                                            
                                                                         
Licensee troubleshooting of Inverter 1V1EC1 has yet to determine the     
cause of the inverter failure.  The licensee is making preparations for a
plant cooldown required by Technical Specifications related to the       
inverter failure.  Troubleshooting of Nuclear Instrument N-42 revealed   
that a circuit card switch had failed.  The licensee replaced the failed 
switch and is investigating the root cause of the failure.               

Regional Action:

The resident inspectors reported to the control room following the trip. 
Resident and regional inspectors are performing a special inspection to  
review both the inverter failure related trips on January 17 and 22, and 
the licensee's corrective actions.                                       

Contact:  A. T. Gody, Jr.            (817)897-1500
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