ML20092B973
| ML20092B973 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 01/27/1992 |
| From: | Zach J WISCONSIN ELECTRIC POWER CO. |
| To: | Martin T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20092B940 | List: |
| References | |
| CON-NRC-92-016, CON-NRC-92-16 VPNPD-92-060, VPNPD-92-60, NUDOCS 9202110203 | |
| Download: ML20092B973 (2) | |
Text
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l e
Wiscenson
'E?Ienctac POWER COMPANY 231 W Mch puo scm 20e wwoukee wt 53&i Miaj u w 3 4.
VPNPD 060 NRC 016 January 27, 1992 Mr. T.
O.
Martin, Director Division of Reactor Safety U.S. NUCLEAR REGULATORY COMMISSION
' Region III 799: Roosevelt Road Glen.Ellyn, Illinois 60137 Gentlemen:
DOCKET 50-266 AND 50-301 AMENDED RESPONSE TO NOTICE OF VIOLATION JNSPECTION REPORT 50-266/90026 AND 50-301/90026 POINT BEAC11 NUCLEAR PLANT, UNITS 1 AND 2 We received the subject Inspection Report and Notice of Violation with-your letter dated March 7, 1991.
The Inspection Report documented the results of the Special Maintenance Team Inspection conducted by the NRC during the periods January 7-11 and January 22-25, 1991.
The enclosed Notice of Violation cited two instances in which prompt corrective action was not taken to resolve known problems.
The problems were associated with eight motor operated valves with installed-torque switches that were subject to a common-mode failure mechanism, and with the resolution of a known DC ground detector alarm setpoint problem.
These instances were classified in the aggregate as a Severity Level IV violation.
We responded to the Notice of Violation by letter dated April 5, 1991.
One of the corrective actions we committed to in response to-the DC ground detection problem is the replacement of the Westinghouse ground detectors with a more sensitive system.
The installation of-the more sensitive ground detection system was e
expected to be completed by January 31, 1992.
Although the modification package has been released for installation, due to conflicting work activities we now find that we will not be able to complete installation by this date.
On January 27, 1992, we took Emergency Diesel Generator G01 out of service for its annual inspection and maintenance outage.
The annual inspection is required by our Technical Specifications.
We 9202110203 9PO204 DR ADOCK G5000266 3Miglg$l POR Asiesuawutsavwam a.pvawn
Mr. T. O. Martin January 27, 1992 Page 2 also plan to replace the diesel glycol coolers and a small section of degraded service water piping to the coolers.
As wc discussed with you on January 23, 1992, we indicated that we would suspend all other work with the potential of affecting plant operation during the time G01 is out of service. _Since installation of the DC ground detection system has the potential for affecting the DC system and instrument buses, we prefer to delay the installation of this modification until after G01 is returned to service.
The existing DC ground detection system will be fully operational during this time period.
Installation of the new system will begin following the return of G01 to service.
We expect completion of the improved DC ground detection system no later than February 28, 1992.
Sincerely, 1
no 4_
(g ~
Ja es J.
Zach Vice President Nuclear Power Copies to NRC Document Control Desk NRC Resident Inspector d