Headquarters Daily Report

                         MAY 13, 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 II  MAY 13, 1997

Licensee/Facility:                     Notification:

Virginia Power Co.                     MR Number: 2-97-0037
Surry 1 2                              Date: 05/08/97
Surry,Virginia                                                            
Dockets: 50-280,50-281
PWR/W-3-LP,PWR/W-3-LP                 

Subject: LETDOWN LINE ORIFICE DEGRADATION                                

Discussion:

This information is provided to highlight a possible generic problem.    
                                                                         
An examination of Surry Unit 1 letdown line orifices was conducted due to
previous degradation problems identified in Surry Unit 2.  The           
deterioration of the letdown orifices in Unit 2 was a contributing factor
to the vibration induced socket weld cracks on piping downstream of the  
orifices.  Cracked welds had resulted in online repairs to these welds.  
The last repair occurred in January 1997.                                
                                                                         
On March 15, 1997, radiographic examination revealed that the Surry      
Unit 1 letdown line orifices were deteriorated.  The 45 gpm orifice,     
nominal 0.212 inch inside diameter, was eroded to approximately 1 inch   
inside diameter in the last five inches of the orifice.  One 60 gpm      
orifice had only minor deterioration while the other 60 gpm orifice,     
nominal 0.242 inch inside diameter, was eroded to approximately a        
half-inch inside diameter in the last one and one half-inches of the     
orifice.                                                                 
                                                                         
Unit 1 has no history of cracked welds on the piping downstream of the   
letdown line orifices.  No cracking was detected during the Unit 1       
inspection; however, due to the deterioration, the letdown line orifices 
were replaced.  In addition, portions of the downstream piping were      
replaced with sections containing butt welded joints.                    

Regional Action:

The resident staff has reviewed the planned actions to replace the Unit 2
letdown line orifices during the upcoming refueling outage in October    
1997.  Region II is considering proposing an information notice to alert 
other licensees of this issue.                                           

Contact:  G. A. Belisle              (404)562-4550
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