United States Nuclear Regulatory Commission - Protecting People and the Environment

Morning Report for January 9, 2003


                       Headquarters Daily Report

                  
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                    REPORT             NEGATIVE          
                    ATTACHED           INPUT RECEIVED    

HEADQUARTERS          X                   
REGION I                               X                   
REGION II                              X                   
REGION III                             X                   
REGION IV                              X


PRIORITY ATTENTION REQUIRED  MORNING REPORT - HEADQUARTERS JANUARY  9, 2003

Licensee/Facility:                     Notification:

Southern Nuclear Operating Company     MR Number: H-03-0001
Vogtle 2                               Date: 01/08/03
Waynesboro,Georgia                                                        
Dockets: 50-425
PWR/W-4-LP                            

Subject: Part 21 - Unstaked Capscrews Renders Residual Heat Removal      
         Pump Inoperable                                                 


Discussion:



DATE OF DOCUMENT: 12/20/02              ACCESSION NO.:  ML023650495      
                                                                         
SOURCE OF DOCUMENT: LER 50-425/         REVIEWER:  D. Billings           
                    2002-001                                             
                                                                         
                                                                         
During defueled conditions, the Residual Heat Removal (RHR) pump A was   
started to fill and vent the RHR system. The pump tripped moments later. 
Investigation determined that a back casing ring capscrew had become     
loose and subsequently lodged between the impeller and the back casing   
ring. RHR pump B was inspected and found to have a similar condition. In 
addition, the spare back casing rings in the warehouse were inspected and
found to also have inadequately staked capscrews.                        
                                                                         
Root cause of this event was determined to be a failure of the           
manufacturer to properly stake the back casing ring capscrews. Each      
capscrew is torqued and staking is performed as a redundant measure to   
hold the capscrews in place. The improperly staked capscrews lost torque 
and subsequently backed out. This could potentially cause both trains of 
ECCS equipment to be rendered inoperable.                                
                                                                         
Vendor: Ingersoll-Rand                                                   
Model No.: 8X20WDF                                                       
Back Casing Ring Part No.: 6B                                            
Capscrew No.: 118C                                                       
                                                                         
                                                                         
Contacts: Danny Billings, NRR                                            
          301-415-1175                                                   
          E-mail: deb1@nrc.gov                                           
                                                                         
          John Zeiler, Region 2                                          
          706-554-9901                                                   
          E-mail: jxz@nrc.gov                                            
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HEADQUARTERS      MORNING REPORT     PAGE  2          JANUARY  9, 2003

MR Number: H-03-0002

                           NRR DAILY REPORT ITEM
                           GENERIC COMMUNICATIONS



Subject: Issuance of Information Notice 2002-35

Information Notice 2002-35, "CHANGES TO 10 CFR PARTS 71 AND 72 QUALITY   
ASSURANCE PROGRAMS," was issued on December 20, 2002.                    
                                                                         
This notice was issued to all holders of 10 CFR Part 71 quality assurance
(QA) program approvals and all 10 CFR Part 72 licensees and certificate  
holders to remind them of the requirement to obtain NRC approval of all  
changes to Parts 71 and 72 QA programs before implementation of the      
changes.                                                                 
                                                                         
ADAMS Accession No. ML023520339                                          
                                                                         
Technical Contact:  Frank Jacobs, NMSS                                   
                    301-415-3961                                         
                    E-mail: fxj2@nrc.gov                       


Page Last Reviewed/Updated Thursday, March 29, 2012