ML060670363
| ML060670363 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 02/27/2006 |
| From: | Hutton J Constellation Energy Group |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML060670363 (3) | |
Text
Constellation Energyr Nine Mile Point Nuclear Station P.O. Box 63 Lycoming, NY 13093 February 27, 2006 U. S. Nuclear Regulatory Commission Washington, DC 20555-0001 ATTENTION:
SUBJECT:
Document Control Desk Nine Mile Point Nuclear Station Unit No. 1; Docket No. 50-220 Special Report: Channel #11 of the Containment Hydrogen Monitoring System Inoperable for Planned Preventive Maintenance In accordance with Action 4.a of Nine Mile Point Unit I Technical Specification Table 3.6.11-2, "Accident Monitoring Instrumentation Action Statements," Nine Mile Point Nuclear Station, LLC, is submitting the following Special Report concerning inoperability of Channel #11 of the Containment Hydrogen Monitoring (CHM) System.
Description of Event On February 13, 2006, at 0844 hours0.00977 days <br />0.234 hours <br />0.0014 weeks <br />3.21142e-4 months <br />, operators declared Channel #11 of the CHM System inoperable to perform planned preventive maintenance.
Cause of Inoperabifitv Channel # 11 of the CHM System was removed from service to support planned preventive maintenance. Maintenance activities included component replacements required on one, two and ten year frequencies.
Channel # 12 of the CHM System was verified to be operable prior to removing Channel #11 from service.
Actions Taken Maintenance was completed, surveillance testing was performed satisfactorily and Channel #11 of the CHM System was restored to operable status on February 17, 2006, at 1400 hours0.0162 days <br />0.389 hours <br />0.00231 weeks <br />5.327e-4 months <br />.
Should you have any questions regarding this submittal, please contact M. H. Miller, Licensing Director, at (315) 349-1510.
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Document Control Desk February 27, 2006 Page 2 Sincerely,
'Jaames A. Hutton Plant General Manager JAH/RF/sac cc:
S. J. Collins, NRC Regional Administrator, Region I L. M. Cline, NRC Senior Resident Inspector
Document Control Desk February 27, 2006 Page 3 bcc:
T. J. O'Connor J. A. Hutton T. Syrell M. H. Miller NMPIL 2029 COMMITMENTS IDENTIFIED IN THIS CORRESPONDENCE:
NONE Posting Requirements for Responses - NOV/Order No