ML20196C884
| ML20196C884 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 12/02/1988 |
| From: | Murley T Office of Nuclear Reactor Regulation |
| To: | Von Schack W DUQUESNE LIGHT CO. |
| References | |
| GL-87-12, GL-88-17, NUDOCS 8812080109 | |
| Download: ML20196C884 (3) | |
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. Docket Nos. 50-334 50-412 DEC _. 21988 Mr. Wesley von Schack Chief Executive Officer Duquesne Light Company 301 Grant Street One Oxford Center Pittsburgh, PA 15279
Dear Mr. von Schack:
SUBJECT:
LOSS OF DECAY HEAT REMOVAL We have just issued Generic Letter 88-17 wnich addresses loss of decay heat removal (DHR) during nonpower operation.
This letter was issued because of the potential serious consequence of loss of shutdown cooling concurrent with significant core decay heat. Further, it is our belief that the industry as a whole has not aggressively responded to resolve the concern following its identification in our earlier Generic Letter r
87-12.
In particular, the industry's response to the Generic Letter 87-12 was deficient in the areas of (1) prevention of accident initiation, (2) mitiga.
tion of accidents before t%y potentially progress to core damage, and (3) control of radioactive material if a core damage accident should cccur.
6eneric Letter 88-17 prescribes expeditious actions which should imediately ease the concern; and parallel, but longer term, programed enhancements which effectively address the root cause of the problems and permit greater flexi-bility in operation.
We consider this issue to be of high priority and request that you assure that your organization addresses it accordingly.
Sincerely, Original signed by, i
Tho:::as E. Abriey j
Theiras E. Murley, Director 7
Office of Nuclear Peactor Regulation cc: See next page b"
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f 50-412 Mr. Wesley von Schack 301 Grant Street One Oxford Center Pittsburgh, PA 15279 Cear Mr. von Schack:
SUBJECT:
LOSS OF DECAY HEAT REMOVAL We have just issued Generic letter 8817 which addresses loss of decay heat removal (OHR) during ronpower operation.
This letter was issued because of the potential serious consequence of loss of shutdown cooling concurrent with significant core decay heat.
Further, it is our belief that the industry as a whole has not aggressively respended to resolve the concern following its identification in our earlier Generic Letter 87-12.
In particular,-the industry's response to the Generic Letter 87 12 was deficient in the areas of (1) prevention of accident initiation, (2) mitiga-tion of accidents before they potentially progress to core damage, and (3) control of radioactive material if a core damage accident should occur.
Generic Letter 80-17 prescribes expeditiou:: actions which should irmediately l
ease the concern; and parallel, but longer term, progransied enhancements which effectively address the root cause of the problems and pemit greater flexi.
bility in operation.
Ve consider this issue to be of high priority and request that you assure that your organization addresses it accordingly.
Sincerely, Thewas E. Murley, Director Office of Nuclear Reactor Regulation ec: See next page DISTRIBUTION Eocket Tite
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OFFICIAL RECORD COPY
4 Mr. Wesley von Schack Beaver '! alley Power Station Duquesne Light Company Units 1 & 2 CC.
Jay E. Silberg, Esquire Bureau of Radiation Protection Shaw, Pittman, Potts and Trowbridge Pennsylvania Department of 2300 N Street, N.W.
Environmental Resources Washington, DC 20037 ATTN:
R. Janati Post Office Box 2063 Kenny Grada, Manager Hairisburg, Pennsylvania 17120 Nuclear Safety Cuquesne Light Company Mayor of the Borrough of P. O. Box 4 Shippingport Shippingport, Pennsylvania 15077 Post Office Box 3 Shippingport, Pennsylvania 15077 William Lacey, Manager Ashley C. Schannauer Nuclear Operations Department Assistant City Solicitor Post Office Box 4 City of Pittsburgh Duquesne Light Company 313 City-County Buildi" Shippingport, Pennsylvania 15077 Pittsburgh, Pennsylvirr 15219 John A. Lee, Esquire Regional Administrator, Region I Duquesne Light Cortpany 11.S. Nuclear Regulatory Comission One Oxford Centre 475 Allendale Road 301 Grant Street King of Prussia, Pennsylvania 19406 Pittsburgh, Penn:,ylvania 15279 W.F. Carmichael, Comissioner Resident Inspector Department of Labor U.S. Nuclear Regulatory Comission 1800 Washington Street East Post Office Box 181 Charleston, West Virginia 25305 shippingport, Pennsylvania 15077 John D. Borrows Director, Pennsylvania Energency Director Utilities Department Pacagement Agency Public Utilities Comission Post Office Box 3321 180 East Broad Street Harrisburg, Pennsylvania 17105-33?1 Columbus, Ohio 43266-0573 J. D. Sieber, Vice President Nuclear Operations Duquesne Light Company Post Office Box 4 Shippingport, PA 15077
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