ML20137C032
| ML20137C032 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 03/17/1997 |
| From: | Roche M GENERAL PUBLIC UTILITIES CORP. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 6730-97-2084, GL-96-05, GL-96-5, NUDOCS 9703240133 | |
| Download: ML20137C032 (3) | |
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j GPU Nuclear, Inc.
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U.S. Route #9 South Forked we NJ 731 0388 Tel 609-9714000 March 17, 1997 6730-97-2084 U. S. Nuclear Regulatory Commission Att: Document Control Desk Washington, DC 20555 Gentlemen:
Subject:
Oyster Creek Nuclear Generating Station, (OCNGS)
Operating License No. DPR-16 Docket No. 50-219 GPU Nuclear 180-Day Response to Generic Letter 96-05
References:
1.
NRC Generic Letter 96-05, dated September 18,1996, " Periodic Verification of Design-Basis Capability of Safety-Related Motor-Operated Valves."
2.
BWR Owners Group Topical Report, NEDC-32719 Class II, "BWR Owners Group Program on Motor-Operated Valve (MOV) Periodic Verification," dated March 1997.
Project No. 691.
3.
BWR Owners Group Topical Report, NEDC'-32264, " Application of Probabilistic Safety Assessment to Generic Letter 89-10 Implementation." Project No. 691.
Generic Letter (GL) 96-05 (Reference 1) requested that licensees establish a program to verify on a periodic basis that safety-related Motor-Operated Valves (MOVs) continue to be capable of performing i
their safety related functions within the current licensing basis of the facility. This letter is the 180-day response requested by Reference 1 and provides a summary description of the GPU Nuclear, Inc. MOV Periodic Verification program for OCNGS.
GPU Nuclear is a member of the Joint Owners Group (JOG) Motor-Operated Valve and Periodic Verification committee and the BWR Owners Group. OCNGS is participating in the JOG periodic verification program. The details of that program were provided to the NRC in Reference 2, above.
The critical elements of the program are discussed below.
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i 6730-97-2084 Page 2 S
Static Testing:
l All valves in the OCNGS GL 89-10 MOV Program will be static tested at a frequency based on
. margin and safety significance. The test frequency matrix and margin calculations for each MOV including consideration of uncertainties is defined in Reference 2. Safety significance will l
be ranked in accordance with Reference 3. The maximum interval between static tests will not i
exceed 10 years (5 refueling intervals).
j Dynamic Testing:
OCNGS will perform dynamic testing of the valves assigned by the JOG and when required
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following maintenance performed on valves which can be dynamically tested. During the dynamic test program, the data from all JOG dynamic testing will be periodically assessed. The results will be factored into our Periodic Verification program, and if needed the design 7
assumptions will be adjusted.
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Schedule:
All MOVs in the GL 89-10 program are static tested periodically to ensure that positive margin j
for operability is maintained. They are also stroke time tested in accordance with the GPUN Inservice Testing Program. OCNGS will modify the static test frequency for all MOVs to that j
defined by the interim JOG Periodic Verification program matrix before the next refueling outage scheduled for September of 1998. In addition, the dynamic testing required to support l
the JOG program will begin at about that same time.
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If any additional information is needed, please contact Mr. David J. Distel, Corporate Regulatory i
Affairs at (201) 316-7955.
Sincerely, i
b bh M. B. Rocha Vice Presid at and Director, OCNGS l
. GMG/ pip -
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Administrator, Region I
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' OCNGS NRC Resident Inspector j
OCNGS NRC Project Manager 2
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4 JERSEY CENTRAL POWER AND LIGHT COMPANY GPU NUCLEAR INCORPORATED Oyster Creek Nuclear Generating Station, (OCNGS)
Operating License No. DPR-16 Docket No. 50-219 I, M. B. Roche being duly sworn, state that I am a Vice President and Director of GPU Nuclear, Inc. and that I am duly authorized to execute and file this response on behalf of GPU i
Nuclear. To the best of my knowledge and belief, the statements contained in this document are true and correct. To the extent that these statements are not based on my personal l
knowledge, they are based upon information by other GPU Nuclear employees and/or consultants. Such information has been reviewed in accordance with company practices and I believe it to be reliable.
)(b M. B. Roche
.l Vice President and Director, OCNGS Signed and sworn before me this
/7 day of.jimL, 3997,
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j Notary Public ogW,DME E.l.EVW w w P, @ yo uowwPusucWW
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