ML18100B017
| ML18100B017 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 04/15/1994 |
| From: | Stone J Office of Nuclear Reactor Regulation |
| To: | Miltenberger S Public Service Enterprise Group |
| Shared Package | |
| ML18100B018 | List: |
| References | |
| IEB-88-009, IEB-88-9, TAC-M88472, TAC-M88473, NUDOCS 9404220015 | |
| Download: ML18100B017 (4) | |
Text
Docket Nos. 50-272
~-
and ~0-311 Mr. Steven E. Miltenberger Vice President and Chief Nuclear Officer Public Service Electric and Gas Company Post Office Box 236 Hancocks Bridge, New Jersey 08038
Dear Mr. Miltenberger:
April 15, 199~
SUBJECT:
EVALUATION OF SUPPLEMENTAL RESPONSE TO NRC BULLETIN NO. 88-09, THIMBLE TUBE THINNING IN WESTINGHOUSE REACTORS, SALEM GENERATING STATION, UNITS 1 AND 2 (TAC NOS. M88472 AND M88473)
By letter dated December 20, 1993, p*ubl ic Service Electric & Gas Company (PSE&G) provided a supplemental response to NRC Bulletin 88-09, "Thimble Tube Thinning in Westinghouse Reactors." During the Salem Station Unit 1 seventh refueling outage, and the Unit 2 fourth refueling outage, PSE&G replaced all the thimble tubes that were the subject of Bulletin 88-09 with an improved design.
The new thimble tube design precluded the continuation of the required Bulletin inspection program.
During a May 1989 staff audit at the Salem Station, PSE&G committed, after achieving sufficient operational.
experience, to provide the supplemental response with an evaluation of the new design and justification for discontinuing an inspection program.
The staff has completed its review of PSE&G's supplemental response and concludes the corrective actions taken and proposed are appropriate and acceptable.
Enclosed is a copy of the staff's safety evaluation.
It is suggested that PSE&G consider, when an opportunity exists, a check for possible leakage or pressure build-up between the concentric thi~ble tubes be conducted, or at least a cautionary note be provided in the disassembly procedure with regard to the potential for leakage.
This completes the staff action for Salem Units 1 and 2 for Bulletin 88-09.
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Enclosure:
Safety Evaluation cc w/enclosure:
See next page DISTRIBUTION Docket File NRC & Local PDRs PDI-2 Reading SVarga JCalvo OFFICE NAME CMi 11 er JStone MO'Brien OGC ACRS 10 PDI-2 PM JStone:rb I "1/94 Sincerely,
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James C. Stone, Senior Project Manager Project Directorate I-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation SA88472.GEN
Docket Nos. 50-272
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and 50-311 Mr. Steven E. Miltenberger Vice President and Chief Nuclear Officer Public Service Electric and Gas Company Post Office Box 23~
Hancocks Bridge, ~ew Jersey 08038 April 15, 199
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Dear Mr. Miltenberger:
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SUBJECT:
EVALUATION OF SUPPLEMENTAL RESPON.SE TO NRC BULLETIN' NO. 88-09, THIMBLE TUBE THINNING IN WESTINGHOUSE REACTORS, SALEM GENERATING STATION, UNITS 1 AND 2 (TAC NOS. MB8472 AND M88473}.
By letter dated December 20, 1993, Public S~rvice EJ~~tri.c. & G:as Company.
(PSE&G) provided a.supplemental response to-NRC Bulletin,88-09,~-"Thimble Tube Thinni.ng. in Westinghouse Reactors.
11 During, the Salem. Station Unit 1 seventh refue 1 i ng-outage, and. the".Un i-t 2 fourth~ refue 1 i ng outage, PSE&G. rep.laced a 11 the thimble tubes that were the subject of. Bul 1 et.i.n. 88r-"09:, Wi;th, an. improved design.
The new thimble tube design precluded the continuation of the required Bul 1 et i.n i nsp_e.c.t ion program.
During,a,.May.1.989,- staff audit".~t the Salem Station,* PSE&G committed, after achieving. sufficient PPE.:!r.ational experience,. to provide the supplemental response with an evaluation of the new design and justification for distontinuing an inspection program.
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The staff has completed_ i.t.s.. revi.ew.of PSE&G's*:supple"le.nt~l response. and- ;,*.;
concludes,Jhe correct.,iv.e"actions.taken an~ prqposed a.re.,appr.opriate and _
~*
acceptable-.... Enclosed is. a, copy of the staff~s safety evalµation: *. It js suggested that PSE&G consider, when an. opportun-ity e}(i.sts~(: a check: for,:
possible 1 eakage* or pressure-build".".up.. between the; concentric thimble, tubes be conducted,. or,_at least.a.. CillJti.onary,.nQte be provided,, *in.. th.e dt.sassembly procedure wtth regard to the potential for leakage.
This completes the staff action-for Salem Uni,.ts 1 and_ 2 for Bulletin 88-09.
Enclosure:
Safety Evaluatfon cc w/enclosure:
See next page DISTRIBUTION Docket File NRC & local PDRs PDI-2 Reading SVarga JCalvo OFFICE NAME DATE
- ._).~.:.*
CMil 1 er JS tone MO' Brien OGC ACRS 10 PDl-2 PM SincerelJ,
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St,o~e,,,.Senior ProJect Manager Projec,t. Directorate 1-2 Di:\\iision of. Reactor Projects -. I/11 Office of Nuclear Reactor Regulation JNorberg EWenzinge~, RGN-1 JWhite, RGN-1 FGrubelich I ~94 DOCUMENT NAME:
SA88472.GEN
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Docket Nos. 50-272 and 50-311 Mr. Steven E. Miltenberger Vice President and Chief Nuclear Officer
- Public Se~vice Electric and Gas Company Post Office Box 236 Hancocks Bridge~ New* Jersey 08038
Dear Mr. Miltenberger:
April 15, 1994
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SUBJECT:
EVALUATION OF SUPPLEMENTAL RESPONSE TO NRC BULLETIN NO> 88';.;,09, THIMBLE TUBE THINNING IN WESTINGHOUSE REACTORS,' SALEM:* NUCLEAR.
GENERATING STATION, UNITS 1 AND 2 (TAC NOS. M88472 AND M88473')'.
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I By letter da~ed Decembe~*20; 1993, Publit'Service El~~tric ~Gas Comeany (PSE&G) provided a supplemental response to NRC Bulletin 88'-09, "Thimble* Tuo'e..
Thinning iii Westinghouse Reactors. i*
- Dl..tring the Salem StatiOn *Unit !seventh:
refuelirig outage, and the Unit 2 fourth refueling outage, PSE&G replaced all the thimble tubes that were the subject of Bulletin 88-09 with an improved design.
The new'thimble tube design-precluded*'ttl'e continuation of the required Bulletin inspection program*.
During a May 1989 staff aud'it at the Salem Station, PSE&G committed, after achie~iri~ ~ufficient operatirinal experience, to provide the*supple~erital response~with an evalu~ti~ri~of the-new design and justifiCation for' diScontinuing an in_spection progra'rir..
The staff has completed its review of PSE&G's supplemental response and concludes the corrective actions taken and proposed are appropriate and acceptable.
Enclosed is a copy of the staff's safety evaluation. It is suggested that PSE&G consider, when an opportunity exists, a check for possible leakage or pressure build-up between the concentric thimble tubes be conducted, or at least a cautionary note be provided in the disassembly procedure with regard to the potential for leakage.
This completes the staff action for Salem Units I and 2 for Bulletin 88-09.
Enclosure:
Safety Evaluation cc w/enclosure:
See next page Sincerely,
~c~
James C. Stone, Senior Project Manager Project Directorate I-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation
Mr. Steven E. Mil tenlger Public Service Electric & Gas Company cc:
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Salem Nuclear Generating Station, Units 1 and 2 Mark ~*-
Wet,tgrJlahn.~;.-Esqu.ir-a0 Winston & Str*awn
-. *- *.*. R~char.ct~,~aritung~ *: 'A~:~:t~.; "' 'i.*~ 'l *;;.;*v-Electric Service Evaluation 1400 L Street NW Washington, DC 20005-3502 Richard Fryling, Jr., Esquire Law Department - Tower SE 80 Park Place Newark, NJ 07101 Mr.. Calvin A. Vondra General Manager - Salem Operations Salem Generating Station
- P.O. Box 236
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Hancocks Bridge, NJ 08038 Mr. J. Hagan Vice President - Nuclear Operations Nuclear Department P.O. Box 236 Hancocks Bridge, New Jersey 08038 Mr. Charles S. Marschall, Senio~iit:;Tu~
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American Building; 9th Floor 231 East Baltimore Street Baltimore, Maryland 21202 Mr. J. T. Robb, Director Joint Owners Affairs PECO Energy Company 955 Chesterbrook Blvd., SlA-13,
- Wayne, PA 19087 Mr. S. LaBruna
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Vice President - Nuclear Engineering Nuclear Department
.P.O.Box236 Hancocks Bridge, New Jersey 08038 Board of Regulatory Commissioners 2 Gateway Center, Tenth Floor Newark, NJ 0710.2..
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Mr. David Wersan Assistant Consumer Advocate
~* Office of Con sum.er Advocate 1425 Strawberry Square Harris~urg, PA 17120 Mr. J. A. Isabella MGR. - Generation Department Atlantic Electric Company P.O. Box 1500 1199 Black Horse Pike Pleasantville, NJ 08232 Carl D~ Schaefer External Operations - Nuclear De*1m*arva'.. Power & Light.Company P.o: Box 231 Wilmington, DE i9899
.., Publi~Service G,omm.i ssion of Maryl and
- En~iri~arinef Division Ch'ief Engineer 6 St. Paul Centre Baltimore, MD 21202-6806