United States Nuclear Regulatory Commission - Protecting People and the Environment


LICENSEE: INGERSOLL-DRESSER PUMP COMPANY     

SITE: INGERSOLL-DRESSER PUMP COMPANY        EN NUMBER:34499

DOCKET:                                  EVENT DATE: 07-09-98

RX TYPE:                                 EVENT TIME: 00:00

VENDORS:                                NOTIFY DATE: 07-09-98

EMERGENCY CLASS: N/A  REGION: 1 STATE: NJ      TIME: 16:01

OPS OFFICER: CHAUNCEY GOULD           

10 CFR SECTION: CCCC  21.21               UNSPECIFIED PARAGRAPH



THE INGERSOLL-DRESSER PUMP COMPANY SUBMITTED A PART 21 REPORT ON 

A POTENTIAL SAFETY HAZARD FROM THE POTENTIAL BREAKAGE OF THE CAST

IRON SUCTION HEADS ON ONE OF THEIR PUMPS.                        

                                                                 

THE PUMPS IN QUESTION ARE OF THE MODEL APKD, WHICH WERE          

MANUFACTURED BY INGERSOLL-RAND COMPANY IN THE MID 1970's.  THESE 

PUMPS ARE INSTALLED AT SEVEN DIFFERENT NUCLEAR SITES(SIX DOMESTIC

AND ONE FOREIGN).  THE SIX DOMESTIC FACILITIES ARE LIMERICK, HOPE

CREEK, SUSQUEHANNA, HATCH, LASALLE AND WNP2.  THE FOREIGN        

FACILITY IS THE CHINSHAN FACILITY IN TAIWAN.  THIS CONDITION WAS 

DISCOVERED AFTER A FAILURE OF THE SUCTION HEAD ON THE "1B" RHR   

PUMP HAD OCCURRED AT THE LIMERICK UNIT 1 PLANT.  IT WAS INITIALLY

NOTED ON 5/98 WHEN A PIECE OF METAL FOUND INSIDE THE REACTOR     

VESSEL WAS TRACED TO THE "1B" RHR PUMP.  A VISUAL                

INSPECTION(BOROSCOPE) REVEALED THAT A PORTION OF THE SUCTION HEAD

WAS MISSING.  THESE PUMPS HAVE BEEN USED IN RHR, CORE SPRAY, LOW 

PRESSURE CORE SPRAY AND HIGH PRESSURE CORE SPRAY APPLICATIONS AT 

THE VARIOUS SITES WHERE THEY ARE INSTALLED.                      



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