BECO-86-059, Responds to NRC 851115 Request for Info & Schedule for Subsequent Util Actions to Address Concern Re IE Bulletin 85-003 That motor-operated Valves May Be Susceptible to Common Mode Failures During Plant Transients

Responds to NRC 851115 Request for Info & Schedule for Subsequent Util Actions to Address Concern Re IE Bulletin 85-003 That motor-operated Valves May Be Susceptible to Common Mode Failures During Plant Transients

ML20197J390
Person / Time
Site:	Pilgrim
Issue date:	05/09/1986
From:	Harrington W BOSTON EDISON CO.
To:	Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
BECD-86-59, BECO-86-059, BECO-86-59, IEB-85-003, IEB-85-3, NUDOCS 8605200022
Download: ML20197J390 (4)

Text

-

7 --

. N EOsTON EDISON COMPANY 800 NOVLsTON STREET 90sTON. M AssACNUsETTs 02199 e

WILLIAM O. 51ARMINGTCJN l . ,;.. . .., . .

May 9, 1986

BECo 86-059

' Dr. Thomas E. Murley Regional Administrator L Office of Inspection & Enforcement ~

( Ra'gion I l U.S. Nuclear.. Regulatory Commission 631 Park Avenue

(' ,

',71ng of Prussia. PA

'19406 License DPR-35 Docket 50-293 Bulletin 85-03: Motor Operated Valves

Dear Sir:

f' By letter of November 15, 1985 the NRC requested information, and a schedule

! for subsequent utility actions to address the concern that motor operated valves (MOV) may be susceptible.to common mode failures during plant transients due to improper switch settings.

After evaluating the request, Boston' Edison and a number of other members of the Bolling Hater Reactor Owners'. Group (BNR0G) determined that parts of Bulletin 85-03 would benefit from a generic approach. This effort would yield the scope of systems, range of events, and a set of assumptions pertinent to developing a BWR response. By letter of April 29, 1986, the BWROG transmitted t

notice of its undertaking the task of developing such a generic BWR position, and requested exemption from the required Bulletin response date of May 14, 1986. The BHROG expects to complete the task by September, 1986.

t Boston' Edison (BECo) herein endorses the BWROG position, and the response date exempt!on request. 'BECo will submit its plant specific data and schedules shortly'after reviewing the BWROG's formally promulgated final position.

(

,\

! B605200022 860509 PDR ADOCK 05000293-G- PDR .

.)

BOSTON EDISON COMPANY Dr. Thomas E. Murley Page 2 We have, as you requested, provided in the attachment to this letter a preliminary matrix containing a description of valves, operators, and function for valves we believe to be within the purview of Bulletin 85-03 Should you wish further information on this submittal, please contact us.

Very truly yours, PMK/kmc Commonwealth of Massachusetts)

County of Suffolk )

Then personally appeared before me, William D. Harrington, who, being duly sworn, did state that he is Senior Vice-President, Nuclear of Boston Edison Company and that he is duly authorized to execute and file the submittal contained herein in the name and on behalf of Boston Edison Company and that the statements in said submittal are true to the best of his knowledge and bellef.

Gera!d G. Whaney My commission expires: My c=n t$ [. 3,a , 1992 C

DATE NOTARY PUBLIC i

O>s,*

sp $t..

i .,% '

Attachment:

MOV Data Summary '.i;[y ,

.,1 yy cc: USNRC Document Control Desk

1. ,, Y,N

• i-M

=t n f ..

h ,Y D Washington, D.C. 20503 L

Attachment MOV Data Summary Valve Valve Operator Valve Function M0-2301-3 Limitorque HPCI Turbine Velan Steam Supply Gate NO-2301-4 Limitorque Steam Isolation Velan Gate M0-2301-5 Limitorque Steam Isolation Velan to HPCI Turbine Gate M0-2301-6 Limitorque Pump Suction Powell From Cond.

Gate M0-2301-8 Limitorque HPCI Pump Anchor Discharge Gate Valve M0-2301-9 Limitorque HPCI Pump Anchor Discharge Gate Valve M0-2301-10 Limitorque HPCI Test Velan Bypass Globe M0-2301-14 Limitorque HPCI Min.

Velan Flow Bypass Globe M0-2301-35 Limitorque HPCI Suction Powell from Torus Gate M0-2301-36 Limitorque HPCI Suction Anchor from Torus Gate M0-1301-16 Limitorque RCIC Steam Velan Supply Isol.

Gate M0-1301-17 Limitorque RCIC Steam Velan Supply Isol.

Gate L_

Valve' Valve Operator Valve Function

~

M0-1301-22 Limitorque RCIC Suction Powell from Condensate Gate Storage Tank

- MO-1301-25 Limitorque RCIC Suction Velan from Torus Gate M0-1301-26 Limitorque RCIC Suction

+

Powell from Torus Gate l M0-1301-48 Limitorque RCIC Pump Powell Discharge Gate M0-1301-49 Limitorque RCIC Pump Powell Discharge Gate M0-1301-53 Limitorque RCIC Test Powell Bypass Gate M0-1301-60 Limitorque RCIC Min.

Powell Flow Bypass Globe MO-1301-61 Limitorque Steam Supply Powell to RCIC Turbine Globe M0-1301-62 Limitorque RCIC Cooling Powell Water to Lube Globe 011 F

RECElVED-REG:0:1 i 1933 BfJ 14 PR ~2: 31 6

• 9 e 9