ML20196K846
| ML20196K846 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 04/02/1999 |
| From: | Gardner R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Myers L AFFILIATION NOT ASSIGNED |
| Shared Package | |
| ML20196K849 | List: |
| References | |
| 50-440-99-05, 50-440-99-5, NUDOCS 9904070273 | |
| Download: ML20196K846 (3) | |
See also: IR 05000440/1999005
Text
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April 2, 1999
4
. Mr. Lew W. Myers
Vice President - Nuclear
FirstEnergy Nuclear Operating Company
P.0, Box 97, A200
Perry, OH 44081
SUBJECT:
NRC MAINTENANCE RULE INSPECTION REPORT 50-440/99005(DRS)
Dear Mr. Myers:
On March 5,1999, the NRC completed a special inspection of your implementation of 10 CFR 50.65, " Requirements for Monitoring the Effectiveness of Maintenance at Nuclear Power
Plants," (the maintenance rule) at the Perry Nuc!sar Power Plant. The enclosed report presents
the results of that inspection.
Our inspection was a risk-informed, performance-based examination of your staff's use and
control of performance criteria. The inspection focused on your method of monitoring structure,
system, and component (SSC) unavailability times and practice of making recurrent adjustments
to performance criteria when SSC performance approached these limits.
Although no violations of NRC regulations were identified, your use of the "10-Minute Rule" and
the "4-Hour Rule" (a concept called " managed restoration") remains under NRC review. The
inspectors were concerned that greater rigor in implementing the practice was necessary to
ensure that its use was carefully controlled.
' While your practice of revising unavailability criteria on a recurrent basis and revision of -
reliability criteria as the number of functional failures approached limits appeared to be based on \\
adequate technical considerations, this practice had the potential to mask degrading equipment
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performance.
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In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice," a copy of this letter and the
enclosure w;ti be placed in the NRC Public Document Room.
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We will gladly discuss any questions you have concerning this inspection.
Sincerely,
Original /s/ Ronald N. Gardner
Ronald N. Gardner, Chief
Electrical Engineering Branch
Docket No.:
50-440
License No.: NPF-58
Enclosure:
Inspection Report 50-440/99005(DRS)
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cc w/ encl:
H. Hegrat, Manager, Regulatory Affairs
R. Schrauder, Director, Nuclear
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Engineering Department
W. Kanda, General Manager
Nuclear Power Plant Department
N. Bonner, Director, Nuclear
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Maintenance Department
H. Bergendahl, Director
Nuclear Services Department
State Liaison Officer State of Ohio
R. Owen, Ohio Department of Health
C. Glazer, State of Ohio Public
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Utilities Commission
DOCUMENT NAME: G:\\DRS\\PER99005.drs
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Distribution:
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RPC (E-Mail)
Project Mgr., NRR wienci
J. Caldwell, Rlli w/enct
B. Clayton, Rlll w/ encl
SRI Perry .//enci
DRP w/ encl
DRS (2) w/ enc!
Rlll PRR w/ encl
PUBLIC 1E-01 w/enct
Docket File w/enct
CREENS
LEO (E-Mail)
DOCDESK (E-Mail)
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