JAFP-96-0439, Submit 180 Day Response to NRC Bulletin 96-003, Potential Plugging of ECC Suction Strainers by Debris in Bwrs
| ML20134F310 | |
| Person / Time | |
|---|---|
| Site: | FitzPatrick  |
| Issue date: | 10/29/1996 |
| From: | Michael Colomb POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| IEB-96-003, IEB-96-3, JAFP-96-0439, JAFP-96-439, NUDOCS 9611050155 | |
| Download: ML20134F310 (4) | |
Text
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J mes A. FitzPatrick j
Nucle:r Pow;r PI:nt P.O. Box 41 Lycoming, New York 13003 315-342 3840 NewYoykPower uicn,e,a.coioms
& Authonty eient uenege, October 29,1996 JAFP-96-0439 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Station P1-137 Washington, D.C. 20555
SUBJECT:
James A. FitzPatrick Nuclear Power Plant Docket No. 50-333 Response to NRC Bulletin 96-03
References:
1.
NRC Balletin 96-03, " Potential Plugging of Emergency Core Coolirg Suction Strainers by Debris in Boiling Water Reactors,"
dateJ May 6,1996 2.
JAFP-95-0494, " Response to NRC Bulletin 95-02," dated November 1E.,1995
Dear Sir:
This letter transmits the Authority's response to NRC Bulletin (NRCB) 96-03 (Reference 1) for the James A. FitzPatrick Nuclear Power Plant. NRCB 96-03 requests that, within 180 days of the date of the bulletin, a response be provided indicating how the Authority intends to comply with the requested actions. The Bulletin requests a description of planned actions and mitigative strategies to be used, the schedule for implementation, and proposed Technical Specifications (TS), if appropriate. NRCB 96-03 also requests that the Authority provide a report confirming completion and summarizing any actions taken, within 30 days of completion of all requested actions.
The Authority intends to install a large capacity passive strainer design (i.e., NRCB 96-03, Option 1) during the Refsel 13/ Cycle 14 (R13/C14) Refueling Outage (RFO) which is currently scheduled for Fall 1998. This meets the NRCB 96-03 requirement because the R13/C14 RFO is the first RFO for FitzPatrick commencing after January 1,1997. A report will be provided to the NRC confirming completion and summarizing actions taken no later than 30 days after startup from the R13/C14 RFO.
The Option 1 design has two main advantages. First, it is completely passive and, therefore, requires no operator intervention. Second, this option does not require an l
l interruption of Emergency Core Cooling System (ECCS) flow. The size of the new passive
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strainer will adequately envelope the combined affects of debris (e.g., fiber insulation) h[I
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generation during a Loss of Coolant Accident (LOCA) and suppression pool sludge. The intent of installing a new large capacity passive strainer is to restore the original design basis for ECCS. The modification for the new strainers will be evaluated under the l
provisions of 10 CFR 50.59. If this evaluation concludes that an Unreviewed Safety l
Question (USO) exists, prior NRC approval will be requested.
I pr,.
l 9611050155 961029 l
PDR ADOCK 05000333 G
PDR j
U.,S. Nucl cr Regultt:ry C:mmissicn Attn: Document Control Desk
Subject:
Response to NRC Bulletin 96-03 j
, Pagg The Authority, as a member of the Boiling Water Reactors Owner Group (BWROG) ECCS Suction Strainer Committee, is currently working on issues associated with the application of the Option 1 design. Part of this wc,,k, which is scheduled during R12/C13 RFO, l
includes detailed suppression pool de-s',udging, sludge analysis, and drywell and suppression pool inspections. The R12/C13 RFO commenced on October 26,1996.
1 NRCB 96-03 also requested utilities to incorporate a new surveillance requirement for the strainers, supportog structures, and suppression pool into the TS, if appropriate. The 1
j Authority does not plan on proposing an amendment to the TS to incorporate any j.
additional surveillance requirement. Inspection criteria for the new strainers and
'j supporting structures and verification criteria for adequate suppression pool cleanliness will be placed in Authority controlled procedures prior to startup from the R13/C14 RFO.
The actions that have been and will be taken by the Authority, as outlined in JAFP l 0494 (Reference 2), continue to demonstrate compliance with 10 CFR 50.46. The status I
I of suppression pool cleanliness at FitzPatrick will not adversely affect ECCS performance and the ECCS will continue to perform the safety function of long-term decay heat removal l
following a LOCA. Based on this, no operability concerns exist regarding ECCS suction I
strainer blockage.
j As stated above, the Authority intends to install a large capacity passive strainer design (i.e., NRCB 96-03, Option 1) during the R13/C14 RFO. However, as significant industry efforts ralative to this issue are progressing, new design options for passive strainers developei by the industry are possible and will be evaluated by the Authority. If the Authority s intent to install a large capacity passive strainer (i.e., NRCB 96-03, Option 1) changes, the NRC will be informed prior to the R13/C14 RFO.
, lists the commitments made by the Authority in this letter. If you have any questions, please contact Mr. R. Plasse at (315) 349-6793.
Very truly yours,
, O. 0 19, -
MICHAEL J. COLOMB STATE OF NEW YORK Plant Manager COUNTY OF OSWEGO 7
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Subscribed and sworn to before me j
this J2 9 day of 6dod6t1996.
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Ndtary Public#
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l U.S.. Nucleer Regul: tory Commissi:n Attn: Document C:ntrol Desk
Subject:
Response to NRC Bulletin 96-03 l
Page
Attachment:
As stated cc:
Regional Administrator U.S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Office of the Resident inspector U.S. Nuclear Regulatory Commission P.O. Box 136 1
Lycoming, New York 13093 Ms. K. Cotton, Acting Project Manager Project Directorate I-1 Division of Reactor Projects 1/11 U.S. Nuclear Regulatory Commission Mail Stop 14 B2 Washington, DC 20555 i
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AttichmInt 1 13 JAFP-96-0439 Summary of Commitments
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Number Commitment Due Date 1
JAFP-96-0439-01 The Authority intends to install a large capacity Prior to startup passive strainer design (i.e., NRCB 96-03, Option from the 1).
R13/C14 RFO JAFP-96-0439-02 Provide a report to the NRC confirming No later than 30 completion and summarizing actions taken days after startup relative to NRCB 96-03.
from the R13/C14 RFO.
JAFP-96-0439-03 Placo verification criteria for adequate Prior to startup suppression pool cleanliness in an Authority from the controlled procedure.
R13/C14 RFO JAFP-96-0439-04 Inform the NRC if the Authority's intent to install Prior to the a large capacity passive strainer (i.e., NRCB 96-R13/C14 RFO 03, Option 1) changes.
JAFP-96-0439-05 Place inspection criteria for the new strainers and Prior to startup supporting structures in an Authority controlled from the procedure.
R13/C14 RFO i
e 4
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