ML19332G169
| ML19332G169 | |
| Person / Time | |
|---|---|
| Site: | FitzPatrick  |
| Issue date: | 12/12/1989 |
| From: | Labarge D Office of Nuclear Reactor Regulation |
| To: | Miraglia F, Murley T, Sniezek J NRC, Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8912200252 | |
| Download: ML19332G169 (4) | |
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_.,04 UNITED STATES NUCLEAR REGULATORY COMMISSION '
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i WASHINGTON, D. C. 20555 l
%,,,g December 12, 1989 Docket No. 50-333 MEMORANDUM FOR:
T. Murley*
B. Grimes P. McKee-
~l J. Sniezek*
F. Congel A. Thadani
-l F. Miraglia ADT*
J. Roe C. McCracken i
J. Partlow, ADP*
C. Grimes C. Haughne.y i
D. Crutchfield, ADSP*
B. Boger H. B. Clayton, E00 S. Varga G. Lainas-F. Gillespie G. Holahan W. Travers W. Bateman O. Rossi B. D. Liaw T. Cox J. Richardson E. Butcher J. Zwolinski THRU:
O' Robert A. Capra, Director Project Directorate I-1 l
Division of Reactor Projects I/II FROM:
David LaBarge, Project Manager Project Directcrate I-1 Division of Reactor Projects I/II Sl!BJECT:
DAILY HIGHLIGHT - TEMPORARY PAIVER OF COMPLIANCE:
i FITZPATRICK HPCI SYSTEM 4
As a result of the ongoing investigation concerning inadvertent isolations of the High Pressure Coolant-Injection-(HPCI) System due to high steam line flow when the HPCI is started, the plant discovered that the steam line flow instrument differential pressure setpoint was too low. There#cre, the steam j
flow required to start the HPCI turbine periodically caused system isolations.
1 Since previous repairs did not seem to be completely effective, a more indepth investigation was started and the system maintained in the inoperable I
condition as allowed by the 7-day Limiting Condition for Operation (LCO) in l
the technical specifications while the cause was being thoroughly investigated.
The LC0 expiration was 6:00 am on December 12, 1989.
I The investigation led to evaluation of the method used to determine the l-correlation between the desired 300% steam flow isolation setpoint and the '
l di'ferential pressure which would result from this flow.
Determination of l
this differential pressure was previously addressed in Amendment No. 68, issued l
March 4, 1982. However, when Revision 2 of GE SIL No. 475 was used, the l
actual flow setpoint was found to be approximately 200%. This SIL, which was i=
issued on November 28, 1988, contained a more accurate method of determining l
the differential pressure setpoint which corresponds to 300% steam flow, based on actual plant data measurements.
i Due to HPCI control system modifications performed during the 1989 maintenance l
outage, this condition only recently started causing isolations when higher steam flows were required to start the system.
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.. - Resolution has involved actual steam flow measurements and determination of the new differential pressure setpoint as described in Revision 2 of SIL 475. A Temporary Waiver of Compliance'was issued-December 11, 1989 allowing the 1
Licensee to implement the new setpoint. This has resulted in declaring the system operable following a successful retest prior to expiration of the-lLCO. The technical specification change is being processed on an emergency basis.
i original signed by David E. LaBarge Project Directorate 1-1 1
Division of Reactor Projects I/II cc: See next page DISTRIBUTION Dated December 12, 1989:
. a.DocRet alle M W NRC & Local PDRs RCapra PDI-1 Rdg DLaBarge OGC Receptionist (WF)
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'CHaughey EJordan BGrimes GPA/PA VWilson LThomas.
LAbraham JDyer JWiggins PDI-1 PDI-1 DLaBarge RCapra i2l&N1 Ih'lb/df I
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- f o Resolution has involved actual steam flow measurements and determination of the new differential pressure setpoint as described in Revision 2 of SIL 475. A Temporary Waiver of Compliance was issued December 11, 1989 allowing the Licensee to implement the new setpoint. This has resulted in declaring the system operable following a successful retest prior to expiration of the LCO. The technical specification change is being processed on an emergency i
basis.
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ny David E. LaBarge Project Directorate I-1 Division of Reactor Projects 1/11 cc: See next page i
7
I
,Mr. John C, Brons James A. FitzPatrick Nuclear Power Authority of the State of New York Porer Plant C
cc:
Mr. Gerald C. Goldstein Ms. Donna Poss Assistant General Counsel New Ycrk State Energy Office Power Authority of the State 2 Empire State Plaza e
of New York 16th Floor 1633 Broadway.
Albany, New York 12223 New York, New York 10019 Resident Inspector's Office Regional Administrator, Region i U. S. Nuclear Regulatory Commission V. S. Nuclear Regulatory Commission Post Office Box 136 475 Allendale Road Lycoming, New York 13093 King of Prussia, Pennsylvania 19406 Mr. William Fernandez Mr. A. Klausm4n Resident Manager Senior Vice President - Appraisal James A. FitzPatrick Nuclear and Compliance Services Power Plant Power Authority of the State Post Office Box 41 of New York Lycoming, New York 13093 1633 Broadway New York, New York 10019 Mr. J. A. Gray, Jr.
Mr. George Wilverding, Manager Director Nuclear Licensing - BWR Nuclear Safety Evaluation Power Authority of the State Power Authority of the State-of New York of New York 123 Main Street 123 Main Street White Plains, New York 10601 White Plains, New York 10601 Supervisor Mr. R. E. Beedle Town of Scriba Vice President Nuclear Support R. D. #4 Power Authority of the State
-Oswego, New York 13126 of New York 123 Main Street White Plains, New York 10501 Mr. J. P. Bayne, President Power Authority of the State of New York flr. S. S. Zulla 1633 Broadway Vice President Nuclear Engineering New York, New York 10019 Power Authority of the State of New York 123 Main Street i
itr. Richard Patch White Plains New York 10601 Quality Assurance Superintendent James A. FitzPatrick Nucle.tr Power Plant Post Office Box 41 Mr. William Josiger, Vice President Lycoming, New York 13093 Operations and Maintenance Power Authority of the State of New York 123 Main Street Charlie Donaldson, Esquire White Plains, New York 10601 Assistant Attorney General New York Department of Law 120 Broadway New York, New York 10271
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