ML20128F501

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Part 21 Rept & Deficiency Rept Re Wkm Model 70-13 Pneumatic Actuators Mfg by Anchor Darling Valve Co.All Affected Valves Being Reviewed/Evaluated & Design Changes Are Being Initiated as Required
ML20128F501
Person / Time
Site: LaSalle  Constellation icon.png
Issue date: 10/04/1996
From: Subalusky W
COMMONWEALTH EDISON CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
REF-PT21-96 NUDOCS 9610080102
Download: ML20128F501 (8)
v • d • e


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'ENERAL INFORMATION or OTHER EVENT NUMBER: 31093

.ICENSEE: LASALLE COUNTY STATION NOTIFICATION DATE: 10/04/96 CITY: REGION: 3 NOTIFICATION TIME: 15:35 [ET]

COUNTY: STATE: IL EVENT DATE: 09/28/96

.ICENSE#: AGREEMENT: Y EVENT TIME: 12 : 00 (CDT]

DOCKET: LAST UPDATE DATE: 10/04/96 NOTIFICATIONS ERC NOTIFIED BY: MR. SUBALUSKY

-Q OPS OFFICER: DOUG WEAVER VERN HODGE NRR

'MERGENCY CLASS: NOT APPLICABLE O CFR SECTION:

'CCC 21.21 UNSPECIFIED PARAGRAPH 1

EVENT TEXT l

PART 21 NOTIFICATION ON WKM MODEL 70-13 PNEUMATIC ACTUATORS l

ANCHOR DARLING VALVE COMPANY PERFORMED EFFECTIVE DIAPHRAGM AREA (EDA)

TESTING ON THE VARIOUS WKM MODEL 70-13 PNEUMATIC ACTUATORS (SIZES 35, 70, 140, 280). THE PRELIMINARY TEST RESULTS INDICATED THAT THE ORIGINAL '
EFFECTIVE DIAPHRAGM AREA VALUES USED TO CALCULATE THE BENCH SET AND SUPPLY AIR SET POINTS WERE INCORRECT. THESE ACTUATORS ARE USED ON VARIOUS PRIMARY '
CONTAINMENT ISOLATION VALVES AND THESE VALVES MAY NOT PROVIDE ADEQUATE l

' SYSTEM ISOLATION UNDER DESIGN ACCIDENT CONDITIONS. ,

!LASALLE UNIT ONE IS IN COLD SHUTDOWN AND UNIT TWO IS IN THE REFUEL MODE. l

/

l 9610000102 961004 f(R I PDR ADOCK 05000373 S PDR

P R0rt s SITE ENGIHEERING FAX HO.s 2502 10-04-96 14:35 P.01 FAX _

Date 10/04/96 Number of pages including cover sheet 7 TO: Nuclear Regulatory FROM: W. T. Subalusky Commission Site Vice-President OPS Center LaSalle County Station i

i Phone 815 357-6761 Fax Phone 815-357-6761, ext. 2502 l

F:x Phone 301-816-5151 V;rification 301-816-5100 RE: LaSalle County Station \

Units 1 and 2 1 10CFR Part 21 Notification 9805 j REMARKS: @ Urgent O Foryourreview 0 Reply ASAP D Please Comment Attached are the above entitled documents including one (1) cover letter; one (1) Memorandum, and Notification.

FR0 51TE E N G,1, y ,E,(p,,1 Q,,,, , ,,, ,, , ,f A X HO. 2502 10-00-96 10 35 P.02 i . s..n, < .. .
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October 4,1996 )

United States Nuclear Regulatory Commission Attention: Document Control Desk l Washington, D.C. 20555 l l

Subject:

LaSalle County Station Units 1 and 2 l l

10CFR Part 21 Notification 9605 NRC Docket Numbers 50-373 and 50-374 Enclosed is Comed's 10CFR Part 21 Notification of the deficiency of WKM model 70-13 Pneumatic Actuators manufactured by the Anchor Darling Valve Company and in use at LaSalle County Station. This notification is submitted in accordance with the requirements of 10CFR 21.

Section 21.1(b),21.3a(3), and 21.3d(4).

If there are any questions or comments concerning this tetter, please refer them to me at (815) 357-6761, extension 3600.

Respectfully, l

, ~ ~ . . .

W. T. Subalusky Site Vice President.

LaSalle County Station Enclosure cc: A. B. Beach, NRC Region ill Administrator M. P. Huber, NRC Senior Resident inspector - LaSalle D. M. Skay, Project Manager - NRR - LaSalle F. Niziotek, Office of Nuclear Facility Safety - IDNS DCD - Licensing (Hardcopy: Electronic: )

Central File s : . i q . . .. c. ,,,. ... . n

  1. R0nt SITE ENG1HEFR1HG FAX NO.s 2302 10-04-96 14:35 P.03 Memorandum Date: October 3,1996 To: Nuclear.Liceparig- r From: '

Charles % flan Date SEC Engineer I h .

/Ofs hb

' Baron S. Westphal [/ Da(e SEC Pump & Valve Supervisor

$cc Lnk Petros Antonopoul6s tohlu Date l

SEC Manager

Subject:

Part 21 Notification 96-05 WKM, model 70-13 Pneumatic Actuators-Incorrect Effective Diaphragm Area LaSalle Site Support Engineering has evaluated the subject document and determined that the defect / noncompliance is reportable under the requirements of 10CFR Part 21. The attached report has been prepared for submittal to the NRC, and should be submitted by October 4,1996, to the NRC Operations Center.

Questions regarding this report should be directed to Mark Smith, ext. 2323..

Enclosure cc: President and Chief Operating Officer Senior Vice President Nuclear Operations Chief Nuclear Operating Officer Vice President Nuclear Engineering Nuclear Station Managers Site Engineering Manager Part 21 Committee Licensing Operations Director A UnNom Cumpny

fROMs '5ITE ENGINEERING FAX NO.s 2302 10-04-96 10:36 P.04 j

. l l

10CFR Part 21 Notificatio_n  ;

10 CFR Part 21 Interim Report (file 96-05) j WKM,MODEL 70-13 PNEUMATIC ACTUATORS-INCORRECT EFFECTIVE DIAPHRAGM AREA AnoiicabiHtv This nottfication is submittedin accordance with the requirements of10CFR Part 21, 1 Section 21. ! (b), 21.3a(3), and 21.3d(4) This is an interim report, afinal report or update will be \

provided within sixty dcys. l Idtntiftcation of Fxility nnd Comconent LaSalle County Station Units One and Two l Commonwealth Edison Chicago, Illinois WKM. Model 70-13 pneumatic actuators (sizes 35, 70,140.

250) letentinention nf rnmnnnens Manufacturer Anchor Darling Valve Company l Nature of Defect l

Anchor Darling Valve Campanyperformedefective diaphragm area (EDA) testing on the various WKM Model 70-13 pneumatic actuators (sizes 33, 70,140, 250). The preliminary test results indicated that the original effective diaphragm area values used to calculate the bench set and supply air set points were incorrect.

1 Safety Sienificance Potentially, the listed Primary Containment isolation System (PCIS) valve assemblies would not provide adequare system Isolation under designed accident conditions. The PCISfunction may not have operated ofrequired.

1 LaSalle Unit One is in ColdShutdown mode and Unit Two is in Refuel mode. The PCISfunctionfor the I listed valves is not requiredfor these modes.

Ilme of Discoverv September 28,1996 Corrective Actions I) All afected valves are heing reviewed'escluated, design changes are being initiated as required j l It should be noted Ihas the WKMSeries 7013 actuator is currently manufactured by the Anchor Darling j

(

Valve Company and sim!!ar valves may have been previously manufactured under the 'Muesco'* or *B. S

& B" designations.

l

2) LaSalle is awaiting the publication ofAnchor Darhng'sfinal testing report. Afinalnotification willbe made at that time.

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Frons s!TE EHu!NEERING FAX NO. 2302 10-00-96 10:36 P.05 10 CFR Part 21 Interim Report (File 96 05) 2 4

Mumber and Location of All_ Defective Cornnonents Original Name Plate Data l Tag /EPN MfGit Type Diaph. Fail

Mode Supplier (Sq.in.)

1833F019 W-K M 70-18-9DRT 70 Close RR Inboard Process Sample Stop*

Controls

  • 1033F020 WKM 7018 9DRT 70 Close RR Outboard Process Sample Stop' Controls

, 1E51F004 WKM 70 291DRT 70 Close RCIC Baro Condenser Cond Pump Controls Discharge to RBEDT Upstream Stop 1ES1F005 W K-M 70-29-1DRT 70 Close RCIC Baro Condenser Cond Pump Controls Discharge to RBEDT downstream Stop 1E51F025 W-K M 70-18-9DRT 70 Close RCIC Steam Supply Drain Pot Outlet Controls Upstream stop i

1E51F026 W-K-M 70-18-9DRT 70 Close RCIC Steam Supply Drain Pot Outlet j Controls Downstream stop j 1E51F054 W-K-M 70-18-90RT 70 Close RCIC Steam Supply Drain Pot Steam l Controls trap flN001A W.K M 70 29-1DRTS 70 Close Otywell Suction Upstream isolation

  • i Controls

, 1IN001B WKM 70 29-1DRTS 70 Close DryweII Suction Downstream * '

} Controls isolation flN017 W K-M 70-291DRTS 3S Close Drywell Pneumatic to Drywel_l*

Controls i 11N074 W-K-M 70-291DRTS 35 Close DWPneumatic Dryer Downstream

  • i Controls Purge Outlet 1

flN075 WKM 70 291DRTS 35 Close DWPneumatic Dryer Upstream' Controls Purge Outlet i 1N62F019A W.K-M 70-29-1 DRTS 140 Close A Offgas Cond. Drain Level Cont Stop Controls 1N62F019B W-K-M 70-29-1 DRTS 140 Close B Offgas Cond. Drain Level Cont Stop Controls 1N62F019C W.K-M 70-29-1DRTS 140 Close C B/Up Offgas Cond. Drain Level Cont i Controls Stop l 1N62F019D W-K-M 70-29-1DRTS 140 Close A B/Up Offgas Cond. Drain Level Cont  !

Controls Stop {

l 1NS2F025A W-K M 70-29-1 DRTS 280 Close A Offgas Cooler Cond inlet stop Controls 1N62F0258 W-K-M 70-29-1DRTS 280 Close B Offgas Cooler Cond inlet stop

! Controls i 1N62F042 W.K-M 70-29-1 DS 280 Open Offgas Charcoal Absorber Train inlet

. Controls Stop 1 1N62F043 W-K-M 70-29-1 DRTS 280 Close Offgas Charcoal Absorber Train Controls Bypass Stop 1N62F047 W-K-M 70-29-1DRTS 280 Close Offgas Charcoal Absorber Train 2

) Controls Bypass Stop 1N62F048 W-K-M 70-29-1 DS 280 Open Offgas Charcoal Absorber Train 2 Inlet Controls Gtop 1N62F049 W-K-M 70-29-1 DRTS 280 Close Offgas Charcoal Absorber Train 1 Controls Bypass Stop 1N62F057 W-K-M 70-29-1DRTS 280 Close Offgas Discharge to Stack Controls PCIS Valves appear in Bold Italles and are marked with an asterisL *.

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Ffon: 's!TE ENGINEERING FAX NO. 2502 10-04-96 14:36 P.06 10 CFR Part 21 Interim Report (File 96-05)

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- 3 1N02F394 Muesco 70-13-1 D 280 Open Offges Charcoal Absorber Train 1 Outlet Stop 1RE024 W-K M 70-29-1DRTS 70 Close DW Equipment Drain Inboan1*

Controls Isolation 1RE025 W-K-M 70 291DRTS 70 Close DW Equipment Drain Outboard

  • Controls Isolation 1RE026 WKM 70-291DRTS 35 Close DW Equipment Drain Sump Recirc*

Controls Valve 1RE029 W-K M 70 291DRTS 35 Close DW Equipment Drain Sump

  • Controls Discharge Valvo 1RF012 W.K M 70 291DRTS 70 Close DWFloor Drain inboardIsolation*

Controls 1RF013 W.K-M 70-29 1DRTS 70 Close DW Floor Drain Outboard Isolation

  • Controls 2B33F019 WKM 7018-9DRT 70 Close RR Inboard Process Sample Stcp*

Controls 2B33F020 WKM 70-18 9DRT 70 Close RR Outboard Process Sample Stop*

Controls 2E51F004 W-K-M 70-29-1 DRT 70 Close RCIC Baro Condenser Cond Pump Controls Discharge to RBEDT Upstream Stop 2E51F005 W-K-M 70-29-1 DRT 70 Close RCIC Baro Condenser Cond Pump Controls Discharge to RBEDT downstream Stop 2E51F025 W-K M 70-18-9DRT 70 Close RCIC Steam Supply Drain Pot Outlet Controls Upstream stop 2E51F026 W-K-M 70-18-90RT 70 Close RCIC Steam Supply Drain Pot Outlet Controls Downstream stop 2E51F054 W K-M 70-18-90RT 70 Close RCtC Steam Supply Drain Pot Steam Controls trap 2iN001A WKM 70-29 1DRTS 70 Close DryweII Suction Upstream Isolation

  • Controls 21N001B W K-M 70 291DRTS 70 Close Drywell Suction Downstream
  • Controls Isolation 2iN017 W-K M 70-291DRTS 35 Closo Drywell Pneumatic to Drywell* j Controls l

21N074 W.K M 70-29-1DRTS 35 Close DW Pneumatic Dryer Downstream

  • Controls Purge Outlet 21NOT5 W.K-M 70 291DRTS 35 Close DW Pneumatic Dryer Upstream
  • Controls Purge Outlet 2N62F019A W-K-M 70 29-1DRTS 140 CloEe A Offgas Cond. Drain Level Cont Stop Controls 2N62F019B W-K-M 70 29-1DRTS 140 Close B Offgas Cond. Draio Level Cont Stop Controls l 2N62F019C W-K-M 70-29-1DRTS 140 Close C BlUo Offgas Cond. Drain Level Cont Controls Stop 2N62F019D W-K-M 70-29-1DRTS 140 Close A B/Up Offgas Cond. Drain Level Cont Controts Stop 2N62F025A W-K-M 70-291DRTS 280 Close A Offgas Cooler Cond Intet stop Controls 2N62F0258 W-K-M 70-29-1DRTS 280 Close B Offgas Cooler Cond inlet stop Controls 2N62F042 W-K-M 70-29-1DS 280 Open Offgas Charcoal Absorber Train inlet Controls Stop 2NS2F043 W-K-M 70 291DRTS 280 Close Offgas Charcoal Absorber Train Controls Bypass Stop PCIS Valves appear in Bold Italics and are marked with an asterisL *.

)

F,R 0 n s SITE ENGINEER!HG FAX HO.s 2502 10-04-96 14137 P.07 10 CFR Part 21 Interirn Report (File 96 05)

4 2N62F047 W-K-M 70-29-1 DRTS 280 Close Offgas Charcoal Absorber Train 2 Controts Bypass Stop 2N62F048 W-K-M 70 29-1DS 280 Open Offgas Charcoal Absorber Train 2 inlet Controls Stop 2N62F049 W-K-M 70-29-1DRTS 280 Close Offgas Charcoal Absorber Train 1 Controls Bypass Stop 2N62F057 WKM 70-29-1DRTS 280 Close Offgas Discharge to Stack Controls l l

2N62F394 Muesco 70131D 280 Open Offgas Charcoal Absorber Train 1 i Outlet Stop l 2RE024 W-K-M 70 29-1DRTS 70 Close DW Equipment Drain inboard ~

Controls Isolation 2RE025 W.K-M 70-29-1DRTS 70 Close DW Equipment Drain Outboard

  • i Controls Isolation l 2RE026 WKM 70-291DRTS 35 Close DW Equipment Drain Sump Recirc*

Controls Valvc 2RE029 W.K-M 70 29-1DRTS 35 Close DW Equipment Drain Sump' Controls Discharge Valve 2RF012 W.K M 70 291DRTS 70 Close DW Floor Drain Inboard Isolation' Controls 2RF013 W-K-M 70-291DRTS TO Close DW Floor Drain Outboard Isolation

  • l 1

Controls Contacts Mark Smith AOV Componcr:t Engineer LaSalle County Station Commonwealth Edison 2601 North 21st Road Marseilles. Illmois 61341 (813) 337 6761 PCIS Valves appear in Bold Italics and are marked wirit an asterisk '

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