ML20140F791
| ML20140F791 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 06/10/1997 |
| From: | Gallo R NRC (Affiliation Not Assigned) |
| To: | Myers L CENTERIOR ENERGY |
| Shared Package | |
| ML20140F796 | List: |
| References | |
| 50-440-97-201, NUDOCS 9706130239 | |
| Download: ML20140F791 (8) | |
See also: IR 05000440/1997201
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NUCLEAR REGULATORY COMMISSION
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WASHINGTON, D.C. 20555-0001
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June 10, 1997
Mr. Lew W. Myers
Vice President - Nuclear
P.O. Box 97, A200
Perry, Ohio 44081
SUBJECT:
PERRY UNIT 1, DESIGN INSPECTION (NRC INSPECTION REPORT NO.
50-440/97-201)
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Dear Mr. Myers:
From February 17 through March 27,1997, the staff of the U.S. Nudear Regulatory Commission
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(NRC), Office of Nuclear Reactor Regulation (NRR) Special Inspection Branch, performed a
design inspection of the Unit I high pressure core spray (HPCS) system, the Unit i emergency
closed cooling (ECC) system, and their support systems. The purpose of the inspection was to
evaluate the capability of the selected systems to perform the safety functions required by their
design bases, the adherence of the systems to their design and licensing bases, and the consistency
of the as-built configuration and system operations with the updated safety analysis report
(USAR).
The findings of the inspection w'ere discussed during a public exit on April 22,1997, and are
presented in the enclosed report. The team identified significant findings, as discussed below and
in the report, which challenged the capability of the systems to perform their complete scope of
design basis accident mitigation actions. Where appropriate, your staff took immediate corrective
or compensatory actions to ensure system operability.
The team identified three examples where the facility was being operated or maintained difTerent!y
than described in the USAR or in vendor's design input information. Two of these examples were
not supported by a written safety or engineering evaluation. The first example involved
continuous operation of the suppression pool cleanup system and the second example related to
the improper setting of the governor speed droop for the division III emergency diesel generator.
These examples have a direct impact on the HPCS system performance. The third example,
determined by the NRC to be a potential unreviewed safety question (USQ), resulted from an
inadequate 10 CFR 50.59 safety evaluation for a change involving early use of operator action to
fill the ECC system surge tank in a post LOCA environment.
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9706130239 970610
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Mr. Lew W. Myers
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The team identified concerns with tornado missile protection of the HPCS and RCIC suction
piping from the condensate storage tank (CST) and protection of the CST level instrumentation
tubing. The existing plant configuration for this equipment did not conform to the licensing basis
described in the USAR. The current plant design and initial evaluation of the team's findings used
a probability approach, which difTered from the licensing basis described in the USAR and the
NRC's SER (NUREG-0887). This is considered to constitute a potential unreviewed safety
question.
For the two issues identified as potential unreviewed safety questions, you can restore the
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nonconforming systems to meet their licensing basis through the corrective action process.
However, ifyou wish to revise the licensing basis to reflect the existing plant configuration, you
should request an amendment to your license pursuant to 10 CFR Part 50.90 requirements. We
understand that you have determined that the nonconforming systems involved are operable.
.
The team found deficiencies in testing and surveillance activities at the plant. For example, the
test pressure used to monitor ECC and the nuclear closed cooling system boundary valve leakage
did not represent values that would be experienced under accident conditions. Also the corrective
action for previously identified problems associated with the diesel generator testable rupture disk
has not been effective in improving reliability of that equipment.
The team noted design program weaknesses, including updating and control of calculations, and
nonconservative assumptions and inputs to calculations. In addition, the team identified
discrepancies and inconsistencies in the USAR, procedures, system description manuals (SDMs),
calculations, drawings, and other documents.
Your engineering stafrexhibited adequate knowledge of the systems evaluated and provided
excellent support to the inspection team. Although we considered the HPCS safety system self-
assessments performed by your staffin 1992, to be a positive initiative, the team identified some
significant issues that were not found in the self-assessment.
Please provide a schedule, within 60 days, detailing your plans to complete the corrective actions
for the open items listed in Appendix A to the enclosed report. This schedule will enable the NRC
staff to plan for the reinspection and closeout of these items.
As with all NRC inspections, we expect that your stafTwill evaluate the applicability of the results
and specific findings of this inspection to other systems and components throughout the plant.
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Mr. Lew W. Myers
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In accordance with 10 CFR 2.790(a), a copy of this letter and the enclosure will be placed in the
NRC Public Document Room. Any enforcement action resulting from this inspection will be
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handled by NRC Region III via separate correspondence. Should you have any questions
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concerning the enclosed inspection report, please contact the project manager, Mr. J. B. Hopkins
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at (301) 415-3027, or the inspection team leader, Mr. M. W. Branch, at (301) 415-1279.
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Sincerely,
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lobert M. Gallo, Chief
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Special Inspection Branch
Division ofInspection and Support Programs
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Oflice of Nuclear Reactor Regulation
Docket Nos.: 50-440
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Enclosure: Inspection Report 50-440/97-201
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In accordance with 10 CFR 2.790(a), a copy of this letter and the enclosure will be placed in the
NRC Public Document Room. Any enforcement action resulting from this inspection will be
handled by NRC Region III via separate correspondence. Should you have any questions
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concerning the enclosed inspection report, please contact the project manager, Mr. J. B. Hopkins
at (301) 415-3027, or the inspection team leader, Mr. M. W. Branch, at (301) 415-1279.
Sincerely,
ORIGINAL SIGNED BY:
Robert M. Gallo, Chief
SpecialInspection Branch
Division ofInspection and Support Programs
Office of Nuclear Reactor Regulation
Docket Nos.: 50-440
Enclosure: Inspection Report 50-440/97-201
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DOCUMENT NAME: G:\\PER97201. FIN
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In accordance with 10 CFR 2.790(a), a copy of this letter and the
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enclosure will be placed in the NRC Public Document Room.
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enforcement action resulting fron this inspection will be ha'ndled
by NRC Region III via separate correspondence.
Should you/have
any questions concerning the enclosed inspection report, p' lease
contact the project manager, Mr. J. B.
Hopkins at (301)/415-
3027, or the inspection team leader, Mr. M.
W.
Branch, it (301)
415-1279.
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Sincerely,
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Robert M. Gallo, Chief
Special Inspection Branch
Division of Inspection and Support Programs
Office of Nuclear Reacto/ Regulation
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Docket Nos.: 50-440
Enclosure:
Inspection Report 50-440/9
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OFFICIAL RECORD COPY
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Centerior Service Company
Perry Nuclear Power Plant
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Unit Nos. I and 2
Cc:
Jay E. Silberg. Esq.
Mayor, Village ofPeny
Shaw, Pittman, Potts & Towbridge
4203 Harper Street
2300 N Street, N.W.
Perry, Ohio 44081
.
Washington, D.C. 20037
Donna Owens, Director
Mary E. O'Reilly
Ohio Department of Commerce
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Centerior Energy Corporation
Division ofIndustrial
.
300 Madison Avenue
Compliance
Toledo, Ohio 43652
Bureau of Operations &
Maintenance
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Resident Inspector's Office
6606 Tussing Road
U.S. Nuclear Regulatory Commission
P.O. Box 4009
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Parmly at Center Road
Reynoldsburg, Ohio 43068-9009
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Perry, Ohio 44081
Mayor, Village of North Perry
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Regional Administrator, Region III
North Perry Village Hall
U.S. Nuclear Regulatory Commission
4778 Lockwood Road
801 Warrenville Road
North Perry Village, OH 44081
]
Lisle, Illinois 60532-4531
Attorney General
Lake County Prosecutor
Department of Attorney General
Lake County Administration Bld.
30 East Broad Street
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105 Main Street
Columbus, Ohio 43216
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Painsville, Ohio 44077
Radiological Health Program
Sue Hiatt
Ohio Department of Health
OCRE Interim Representative
P.O. Box 118
8275 Munson
Columbus, Ohio 43266-0188
Mentor, Ohio 44060
Ohio Environmental Protection
Teny J. Lodge, Esq.
Agency
618 N. Michigan Street, Suite 105
DERR--Compliance Unit
Toledo, Ohio 43624
ATTN: Mr. Zack A. Clayton
P.O. Box 1049
Ashtabula County Prosecutor
Columbus, OH 43266-0149
25 West Jefferson Street
Jefferson, Ohio 44047
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Chairman
Perry Township Board of
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Henry L. Hegrat
Trustees
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Regulatory Affairs Manager
3750 Center Road, Box 65
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Cleveland Elec. Illuminating Co.
Perry, Ohio 44081
Perry Nuclear Power Plant
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P.O. Box 97, A210
State of Ohio
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Perry, Ohio 44081
Public Utilities Commission
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East Broad Street
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Columbus, OH 43266-0573
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James R. Williams
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ChieforStaff
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Ohio Emergency Management Agency
Richard D. Brandt, Plant
2855 West Dublin Granville Road
Manager
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Columbus Ohio,43235-2206
Cleveland Electric
illuminating Co.
Lew W. Myers
Perry Nuclear Power Plant
Vice President - Nuclear, Perry
P.O. Box 97, SB306
Centerior Service Company
Perry, Ohw 44081
P.O. Box 97, A200
Perry, Ohio 44081
Roy P. Lessy, Jr., Esq.
Andrew G. Berg, Esq.
Akin, Gump, Strauss, Hauer
& Feld, L.L.P.-
Suite 400
1333 New Hampshire Ave., N.W.
Washington, D.C. 20036
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Distribution:
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Docket Files 50-440/97-201
PSIB R/F
TTMartin, NRR
FPGillespie, NRR
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RMGallo, NRR
DPNorkin, NRR
TOMartin, OEDO
CERossi, AEOD
JWRoe, NRR
GHMarcus, NRR
JBHopkins, NRR
CBoyle, NRR
DKosloff, SRI
Regional Administrators
Regional Division Directors
Inspection Team
PUBLIC
ACRS (3)
OGC (3)
1S Distribution
SPSB, NRR
PRAB,RES
,