ML20034C888
| ML20034C888 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 05/11/1990 |
| From: | Kane W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Mroczka E NORTHEAST NUCLEAR ENERGY CO. |
| Shared Package | |
| ML20034C889 | List: |
| References | |
| EA-90-084, EA-90-84, NUDOCS 9005210056 | |
| Download: ML20034C888 (4) | |
See also: IR 05000245/1990005
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MAY 111990
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Docket No. 50-245
Northeast Nuclear Energy Company
ATTH:' Mr. E. J. Mroczka
Senior Vice President - Nuclear
~ Engineering and Operations
P.O. Box 270
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Hartford, Connecticut
06141-0270
Gentlemen:
Subject: NRC Region I Inspection No. 50-245/90-05
This refers to the routine safety inspection conducte'd by Mr. D. Dempsey of.
this office on February 21 - April 2,1990 at Millstone Nuclear Power Station,:
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Unit 1, Waterford, Connecticut of activities authorized by NRC License No.
' DPR-21, and to the discussions of our findings by Mr. Dempsey with Mr. J. -Stetz -
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at the conclusion of the inspection.
0uring the inspection period,=our review indicated that since' December, 1976,.a
non-conservative main steam-line high flow setpoint had existed at-Unit 1,
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which would have resulted in Group I main steam line isolation at.a steam flow
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in excess of that required by technical specifications. Additionally, since at
least 1978, the emergency gas turbine generator had not been tested at' full;
load output.as' required by technical specifications.
In both' cases,. power
operation continued during these periods.in which applicable technical
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specification limiting conditions for operation were not met'.
Both cases-
represent apparent violationr of the Commission's' regulations as detailed in-
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the enclosed report.
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In the case of the main steam line flow switches, we ~are c'oncerned .regarding
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the lack of timely appreciation of and response to a significant-condition-
adverse to quality by unit management,
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Regarding the gas turbine-generator event, we are' concerned that the procedure
review and approval mechanisms extant at Millstone.1 apparently were insufficient
to identify the inadequacy leading to this event.
The apparent violations identified in our review of these events are discussed:
in the enclosed inspection report. The need for, and nature of, appropriate
enforcement action concerning the apparent violations will be the subject of
separate correspondence at a later time.
These matters will be discussed in
an enforcement conference with you and' members of your staff scheduled .for
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May 24, 1990 in the Region I office, King of Prussia, Pennsylvania. You
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0FFICIAL RECORD COPY
IR MILLI 90-05 - 0001.0.0
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9005210036 900511
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ADOCK 05000245
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should'come to the meeting prepared to discuss your. understanding of these. events,
the reasons why they occurred, and your~ planned and' completed corrective actions.
Your cooperation with us is appreciated.
Sincerely,
ORIGINAL SIGNED BY;
JAMES T. WIGGINS -
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William.F. Kane,-Director
Division of Reactor Projects
Enclosure:- NRC Region I Inspection Report No. 50-245/90-05
cc w/ enc 1:
W. D. Romberg, Vice President, Nuclear Operations
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R. M. Kacich, Manager, Generation Facilities Licensing.
D. O. Nordquist, Director'of Quality Services
S. E.-Scace, Nuclear Station Director,' Millstone Station
J. P; Stetz, Nuclear Unit. Director, Millstone Unit 1
. Gerald Garfield, Esquire
Public Document Room (PDR)
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local Public' Document. Room (LPDR)
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NRC Senior Resident Inspector-
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State of Connecticut
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0FFICIAL RECORD COPY
IR MILL 1 90-05 - 0002.0.0
04/26/90
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Northeast Nuclear Energy Company.
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bec w/ encl:
Region I Docket Room (with concurrences)
Management Assistant, DRMA-(w/o enclosures)
DRP Section Chief
J. Shediosky, SRI, Haddam Neck ~
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W. Raymond, SRI, Millstone
M. Boyle, PM, NRR/PDI-4
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J. Wiggins, DRP
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W. Johnston, DRS
J. Durr, DRS
R. Gallo, DRS.
M. Knapp, DRSS
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R. Bellamy, DRSS
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OFFICIAL RECORD COPY
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W. Raymono, SRI, M11194ne
M. Boyle PM, t'RR/PD1-4
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J. Goldberg, LEC
J. Lieberman, OE
D. Holody, OE:RI
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J. Wiggins, ORP
W. Hodges, DRS
W. Johnston, DRS
J. Durr, DRS
R. Gallo, DRS
M. Knapp, DRSS
R. Cooper, DRSS
R. Bellamy, DRSS
J. Stolz, NRR/PDl-4
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04/26/90
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