ML20211B746

Part 21 Rept Re Failure of Emergency Service Water Pump Due to Threaded Flange Attaching Column to Top Series Case Failure.Caused by Dissimilar Metals.Pumps in High Ion Svc Will Be Upgraded to 316 Stainless Steel Matl

ML20211B746
Person / Time
Site:	Oyster Creek
Issue date:	09/24/1997
From:	Lane W BW/IP INTERNATIONAL, INC. (FORMERLY BYRON JACKSON
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
REF-PT21-97 NUDOCS 9709260006
Download: ML20211B746 (5)

Text

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.y.NT BY:lM/ll' IN1GNATl0NAL-LA: 3 24-37 :- 1EONICAL SYC GRf%

UW/IP internat6onal, Inc.

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24 September.1997 i

II.S. Nuclear Regulatory commission Attn: Document Control Desk Washington, D.C. 20555  :

Not:Jication Pursuant to Title 10, CFR. Part 21 Gentlemen: .

Dds letter transtnits a Nottfication ofDefects and Non-cor!fonnance in accordance with the requirements of 10 CFR, Part 21. The attached Notification. CFRN 97 01, reports a corulition which efects Emergemy Service Waterpumps supplied by BW/IP International, Inc.to GPU, oyster Creek Nuclear Generating Station.

This transmittal completes the notification requirements on this issue.

\'ery truly yours,

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Manager, Nuclear Products Operations Attach, l

cc: Part 21 Rvaluation Board Members 1

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SD7. flYS/IP IMLRAAll0NAL-LA: 9-24-37 : 8:55 : TEGINICAL SYC GRP- 301 810 5151:s 2/ 4 L i

NOTIFICATION NO. CFRN 97-01 i

DATE: 24 September 1997 NOTIFICATION OF A REPORTABLE ISSUE PURSUANT TO 10 CFR 21 TO: U. S. Nuclear Regulatory Commission i, Attn: Document Control Desk i Washington, D.C. 20555 NAME AND ADDRESS Ol' INDIVIDUAL INFORMING Tile COMMISSION:

Mr. Woody Larie OW/IP Intamational,Inc.

Pump DMston 2300 EastVernon Avenue Vemon, CA 900EB (213) 587-6171 For Technical Information Contact Dr. Kent Huber BW/IP Evaluation No. CFR 97 007 IDENTIFICATION OF THE FACILl1Y, THE ACTIVITY, OR THE DASIC COMPONENT SUPPLIED FOR SUCH FACILITY OR ACTIVITY WITHIN THE UNITED STATES WHICH FAILS TO COMPLY OR CONTAINS A DEFECT:

Facility: GPU Nuclear, Oyster Creek Nuclear Generation Station Bar,ic Component: Emergency Service Water Pump UWAP Model 16(2H 4 stage VIP 1

(DENTIFICATION OF THE FIRM SUPPLYING THE BASIC COMPONENT WHICH FAILS TO COMPLY OR CONTAINS A DEFECT: r BWAP International. Inc.

Pump DMsion:

2300 E.Vernon Avenue L.os Angeles, CA 90058 Page1 L

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$LN1. liY:15%/ll' IN1LDAll0NAL LA: 0-24-97 : 8:50 : lLCilNICAL SVC GRP- 301810 5151:r at i NOTIFICATION NO. CFRN 97-01 ,

NATURE OF THE DEFECT OR FAILURE TO COMPLY AND THE SAFETY HAZARD WHICH IS CREATED OR COULD BE CREATED BY SUCH DEFECT OR FAILURE TO COMPLY:

An Emergency Service Water pump fa; led during a sito Operability Test. Inspection revealed the threaded flange attaching the column to the top series case had failed. Utility attributed failure to dissimilar metals: a cast iron flange was Installed between a stainless steel column pipe and a stainless steel top caso. Utility removed a second pump from service which had similar metallurgy Failure of the pump would preclude its ability to perform its intended safety function.

T THE DATE ON WHICH THE INFORMATION OF SUCH DEFECT OR FAILURE TO COMPLY WAS OBTAINED:

DW/IP International,Inc., was informed of the flange failure on 21 August 1997.

IN THE CASE OF A DASIC COMPONENT W;1lCl4 CONTAINS A DEFECT OR FAILS TO COMPLY, THE NUMDER AND LOCATION OF ALL SUCH COMPONENTS IN USE AT, SUPPLIED FOR, OR DEING SUPPLIED FOR ONE OR !!. ORE FACILITIES OR ACilVillEE SUBJECT TO THE REGULAllONS:

GPU Nuclear, Oyster Crcck Station, purchased ci;ht pumps in which cast iron and stzinless $1001 parts are in contact in a high son opphcation. Two pumps have been scrapped The matenal compatibihtecs of the six pumps that are in operation at GPUN have either been corrected or are in the process of being corrected.

Initial evaluation indcates that this is an isolated incident limited to only this location. Ilowever, a review ts being performed of the installed base of BW/tP pumps to identify the number and locat on of any other pumps in similar nuclear applicctions that may have materialcornpatibchty concerns.

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SLNI 1(Y IW/II' IMIRM110ML-LA; 3-21-37 8:50 llCilNICAl SVC GRl'-- 301 816 5151.s 1/ 1 NOTiflCATlON NO. CFRN 97-01 THE CORRECTIVE ACTION WHICH HAS, IS BEING, OR WILL BE TAKEN: THE NAME OF 1HE INDIVIDUAL OR ORGANIZATION RESPONSIBLE FOR THE ACTION: AND THE LENGTH OF TIME THAT HA? UEEN OR WILL DE TAKEN TO COMPLETE THE ACTION:

nW/IP recornmends that utstity upgrado all pumps in high ion services to 316 stainicss steel material and install isolation kits between the stainless steel column flange and the cast iron discharge head. Two pumps from the Oyster Creek station are currently in the UW!lP Service Center for refurbishmont and materials upgrading. GPU has been advised to installisolation kits on two units which are currently in operation.

ANY ADVICE RELATED TO THE DEFECT OR FAILURE TO COMPLY ABOUT THE FACILITY, ACTIVITY, OR DASIC COMPONENT THAT HAS BEEN,IS BEING, OR WILL DE GIVEN TO PURCHASERS:

Pumps were purchased by GPUN in 1986 as commercialitems not subject to 10CFR, Part 50, Appendix B or 10CFR, Part 21, requirements. GPUN subsequently designated the pumps as Safety related equipment.

The dedication process performed by GPUN established the onginal design as the design basis of the cquipment for future safety-related purchases and repairs Pump was installed in a beackish water environment which caused corrosion of the top case flange. Based on inspection observations, BW!lP recommended,in 1993, that GPUN upgrade all pump components to 316 stainless steel. However, orie pump, SIN 651 N-07t.B. was refurbished with GPUN supplied parts, as directed ie the GPUN purchase order to support plant schedules, and returned to the s,ite with a combination of C l.

and stainless steel materials.

In July 1997, the top case f;ange on one of the pumps crperienmd a total fadure inspection showed a second pump alt.o had similar materials of construction both pumps were removed hom sernce rend returned to DW/IP International for iefurbishing.

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SENERAL INFORMATION or OTiiER EVENT NUMBER: 32985 LICENSEE 'DW/IP INTERNATIONAL, INC. NOTIFICATION'DATE: 09/24/97 CITY: LOS ANGELES REGION: 4 NOTIFICATION TIME: 12:00 (ET)

COUNTY: LOS ANGELES STATE: CA EVENT DATE: 09/24/97-LICENSEN: AGREEMENT: Y EVENT TIME: 08:55(PDT)

DOCKET: LAST UPDATE DATE: 09/24/97 NOTIFICATIONS ELMO COLLINS RDO NRC NOTIFIED BY: W. LANE (VIA FAX) VERN HODGE (NRR) FEMA 10 OPS OFFICER: STEVE SANDIN TOM MOSLAK (RIDO)

. EMERGENCY CLASS: NOT APPLICADLE 10 CFR SECTION:

2CCC 23.21 UNSPECIFIED PARAGRAPil EVENT TEXT PART 21 NOTIFICATION THE EMERGENCY SSRVICE WATER PUMP, BW/IP MODEL 16-Gil 4 -STAGE VTP FAILED DURING A SITE OPERADILITY TEST AT T.lE OYSTER CREEK GENERATING STATION. AN INSPECTION REVEALED TilAT THE THREADED FLANGE ATTACllING Tlid COLUMN TO Ti!E TOP SERIES CASE IIAD FAILED. TIIE UTILITY (GPU) ATTRI!30TED Ti!E FAILURE TO DISSIMILAl. METALS; A CAST IRON FLANGE WAS INSTALLED BETWEEN TIIE STAINLESS STEEL COLUri4 PIPE AND A STAINLESS STEEL TOP CASE. BW/IP REVIEWED TIIE UTILITIES UVALUATION AND RECOMMENDED TilAT ALL SUCl! PUMPS IN !!IGH ION SERVICES DE UPGRADED TO 316 STAINLESS STEEL MATERIAL.

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