ML20155B355
| ML20155B355 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 10/19/1998 |
| From: | Mallett B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Gordon Peterson DUKE POWER CO. |
| Shared Package | |
| ML20155B359 | List: |
| References | |
| 50-413-98-13, 50-414-98-13, EA-98-477, NUDOCS 9810300127 | |
| Download: ML20155B355 (7) | |
See also: IR 05000413/1998013
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October 19, 1998
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_EA 98-477
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Duke Energy Corporation
' ATTN: Mr. G. R. Peterson
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Site Vice President
Catawba Nuclear Station
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4800 Concord Road
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York. SC 29745
SUBJECT:
NRC INSPECTION REPORT NO. 50-413/98-13 AND 50-414/98-13
Dear Mr. Peterson:
This refers to a special ice condenser inspection conducted by the NRC
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August 7 through September 15. 1998, to review NRC licensed activities at your
Catawba nuclear reactor facility. The purpose of the inspection was to review
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the identification and correction of Unit 1 ice condenser related problems
which led to a forced unit shutdown. The inspection also reviewed your
]rogram for selected maintenance, surveillance and engineering activities in
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Joth Units 1 and 2.
Your actions were adequate to resolve the identified problems to support
restart of Unit 1: however, the enclosed report-documents deficiencies in the
program which-has oversight of the material condition and surveillance
. implementation of the Unit 1 ice condenser system.
Subsequent to the Unit 1
forced outage. problems similar to those which existed on Unit 1 were
identified during a Unit 2 refueling outage, which commenced on September 5.
1998.
NRC inspection results regarding Unit 2 outage activities will be
documented-in NRC Inspection Report 50-413, 414/98-10.
Based on the inspection results, a number of apparent violations were
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identified and are being considered for escalated enforcement action in
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accordance with the " General Statement of Policy and Procedure for NRC
Enforcement Actions" (Enforcement Policy). NUREG 1600.
The apparent
violations involve: Failure to promptly identify and correct ice condenser
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flow channel blockage and damaged ice baskets in accordance with 10 CFR
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Part 50. Appendix B. Criterion XVI: Failure to adequately perform Technical
Specification Surveillance Requirements involving containment debris
inspections: Failure to install ice condenser components in accordance with
applicable drawings as required by 10 CFR Part 50 Appendix B. Criterion V: and
Failure to ensure that design control measures were followed as required by
10 CFR Part 50. Appendix B. Criterion III.
9810300127 981019
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The apparent violations remain under NRC review.
After completion of this
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review, the NRC will contact you to schedule an open predecisional enforcement
conference.
Accordingly, no Notice of Violation is presently being issued for
these inspection findings.
In addition. please be advised that the number and
characterization of the apparent violations described in the enclosed
inspection report may change as a result of further NRC review.
No response
regarding the apparent violations is required at this time.
In accordance with 10 CFR 2.790(a) of the NRC's " Rules of Practice." a copy of
this letter and its enclosures will be placed in the NRC Public Document Room
(PDR).
Should you have any questions concerning this ma ter, plea e contact us.
Sincerely.
Bru
S. Mallet . Director
Di> sion of Re tor Safety
Docket Nos.
50-413 and 50-414
License Nos.
Enclosure:
NRC Inspection Report
cc w/ encl:
M. S. Kitlan
Regulatory Compliance Manager
Duke Energy Corporation
4800 Concord Road
York. SC 29745-9635
Paul R. Newton
Legal Department (PB05E)
Duke Energy Cor] oration
422 South Churc1 Street
Charlotte NC 28242
J. Michael McGarry III. Esq.
Winston and Strawn
1400 L Street. NW
D. C.
20005
(cc w/ encl cont'd - See page 3)
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(cc w/ encl cont'd)
North Carolina MPA-1
Suite 600
P. O. Box 29513
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Raleigh, NC 27626-0513
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Virgil R. Autry. Director
Div. of Radioactive Waste Mgmt.
S. C. Department of Health
and Environmental Control
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2600 Bull Street
Columbia. SC 29201
Richard P. Wilson. Esq.
Assistant Attorney General
S. C. Attorney General's Office
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P. O. Box 11549
Columbia. SC 29211
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Michael Hirsch
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Federal Emergency Management Agency
500 C Street, SW. Room 840
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Washington, D. C.
20472
North Carolina Electric
Membership Corporation
P. O. Box 27306
Raleigh. NC 27611
Karen E. Long
Assistant Attorney General
N. C. Department of Justice
P. Box 629
Raleigh, NC 27602
Saluda River Electric
Cooperative. Inc.
P. O. Box 929
Laurens. SC 129360
County Manager of York County
York County Courthouse
York. SC 29745
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Piedmont Municipal Power Agency
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121 Village Drive
Greer. SC 29651
(cc w/ encl cont'd - See page 4)
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(cc w/ encl cont'd)
L. A. Keller. Manager
Nuclear Regulatory Licensing
Duke Energy Corporation
526 S. Church Street
Charlotte. NC 28201-0006
Steven P. Shaver
Senior Sales Engineer
Westinghouse Electric Company
5929 Carnegie Boulevard. Suite 500
Charlotte. NC 28209
Distribution w/ encl:
S. Shaeffer. RII
P. Tam. NRR
R. Carroll
RII
C. Ogle. RII
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P. Fredrickson. RII
C. Payne. RII
A. Boland. EICS
J. Lieberman. OE
OE:EA File (B. Summers, (2)) OE)
PUBLIC
NRC Resident Inspector
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U.S. Nuclear Regulatory Commission
4830 Concord Road
York. SC 29745
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EXECUTIVE SUMMARY
Catawba Nuclear Station
NRC Inspection Report 50-413/98-13 and 50-414/98-13
This special report discusses aspects of the licensee's maintenance and
engineering support programs.
The report reviewed a number of significant
problems involving the Unit 1 ice condenser system during a unit forced
shutdown for the ice condenser system and the licensee's corrective actions
associated with the identified issues on both units, when applicable.
Maintenance
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An overall weakness was identified with initial scoping of problems and
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thoroughness of licensee inspections completed during the outage for
flow channel degradation foreign material intrusion, and material
condition of ice condenser baskets.
Licensee management's failure to
confirm the thoroughness of contractor personnel to provide a proper
scoping of problems contributed to this weakness. After problems were
identified by the NRC in each of these areas, licensee response to the
problems was considered adequate. (Section M1.1)
An apparent violation of 10 CFR Part 50. Appendix B. Criterion XVI was
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identified for failure to identify and correct significant ice condenser
flow blockage. (Section M1.2.b.1)
Immediate licensee corrective actin is for the flow channel blockage
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problem, including a forced unit shutdown and extensive cleaning of the
affected area, were considered adequate to support restart of the unit.
(Section M1.2.b.5)
An unresolved item was identified concerning past ice condenser flow
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blockage operability. (Section M1.2.b.5)
Licensee evaluations regarding potential adverse impact of the leaking
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block-ice machine on critical minimum ice mass requirements were
adequate.
The identification of a high number of stuck baskets in Bay 5
and the mass increase of other baskets during the 1997 Unit 1 refueling
outage were additional opportunities to identify and correct the
significant condition adverse to quality. (Section M1.2.b.6)
Based on the receipt of new design basis information, previous licensee
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interpretations regarding ice condenser flow passage areas were
determined to be non-conservative. (Section M1.2.b.7)
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An apparent violation of technical specification 4.5.2.c was identified
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for failure to conduct adequate visual debris inspections in the Unit 1
containment. (Section M1.3)
An unresolved item was identified concerning foreign material effects on
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the Unit 1 containment emergency core cooling system sump. (Section
M1.3)
The licensee's efforts to exclude foreign material from the ice
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condenser during previous outages had not been adequate as evidenced by
the amount of debris found during a Unit 1 forced outage.
At the end of
the inspection. licensee sensitivity in the area of foreign material
exclusion in the ice condenser had improved. (Section M1.3)
An apparent violation of 10 CFR Part 50 Appendix B. Criterion XVI was
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identifled for failing to promptly identify and correct ice condenser
basket material condition problems. (Section M1.4)
An unresalved item was identified regarding past operability reviews of
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denting identified on ice condenser baskets. (Section M1.4).
Corrective actions taken for the ice condenser basket denting and deck
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door bolting issues was adequate to support restart of the unit.
(Sections M1.4 and M1.5)
An apparent violation of 10 CFR Part 50. Appendix B. Criterion V was
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identified for failure to accomplish activities affecting quality in
accordance with documented drawings. (Section M1.5)
The stored ice chemical sampling technical specification (T.S.) was not
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sufficiently specific and warranted improvement to more clearly address
T.S. intent in the actual specification.
No immediate operability
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concerns were identified.
(Section M1.6)
Final material condition of the Unit 1 ice condenser was adequate to
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support operability of the ice condenser system. Applicable ice
condenser Technical Specification surveillances were appropriately
identified and successfully corrected. (Section M1.7)
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Engineering oversight and problem resolution of a degraded condition in
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Bay five of the Unit 1 ice condenser was inadequate.
This inadequacy
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led to a significant condition adverse to quality being left
unidentified and uncorrected for an approximate two year period.
(Section M1.2.b.5)
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An apparent violation was identified concerning inadequate design
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control measures within the Unit 1 and 2 ice condenser systems.
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Corrective actions taken for the identified concerns were adequate to
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support restart of Unit 1 and continued operation of Unit 2. (Section
E2.1)
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