ML20113B443
| ML20113B443 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 03/21/1985 |
| From: | Mangan C NIAGARA MOHAWK POWER CORP. |
| To: | Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| (55(E)-85-06), (55(E)-85-6), (NMP2L-0372), (NMP2L-372), NUDOCS 8504110193 | |
| Download: ML20113B443 (2) | |
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M8AGARA MOHAWK POWER CORPORAT10N/300 ERIE BOULEVARD WEST. SYRACUSE, N.Y.13202/ TELEPHONE (315) 4741511 March 21, 1985 (NMP2L 0372)
Mr. ~ R. W. Starostecki, Director U. S.- Nuclear Regulatory Commission Region I Division of Project and. Resident Programs 631 Park Avenue King of. Prussia, PA 19406 Re: Nine Mile Point - Unit 2 Docket'No. 50-410
Dear Mr. Starostecki:
Enclosed is a final report in accordance with 10CFR50.55(e) for the problem concerning the incorrect switches installed on PGCC panel.
This problem was reported via tel-con to W. Lazarus of your office on February 19, 1985.
Very truly yours, d2[)L0t/o i
C. V. Man
. Vice President -
Nuclear Engineering and Licensing CVM/GG:cla l
.xc: Director of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, DC 20555
~ R. A.' Gram, NRC Resident. Inspector Project File (2)
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NIAGARA M0 HAWK POWER CORPORATION NINE MILE POINT - UNIT 2 DOCKET NO. 50-410 Final Report for a Problem Concerning the Incorrect Switches Installed on PGCC Panel (55(e)-8E-06)
Description of the Problem The problem concerns the installation of spring return three-position switches in lieu of the specified two-position switches on panel 2 CEC *PNL601.
The panel was suppl ied by General El ectric.
These switches are designed for manual operation of low pressure core spray, high pressure core spray, and residual heat removal water leg pumps.
The spring-return switches would not pennit the continuous operation of these pumps, as required by system design, unless the operator holds the switch in the "run" position.
Analysis of Safety Implications If the lines mentioned above are not filled prior to operation, system integrity could be jeopardized due to water hammer loads.
Therefore, if this condition were to have remained uncorrected, it could have adversely affected the safety of operation of the plant.
Corrective Action The subject switches have been replaced with the correct switches.
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