ML062490527
| ML062490527 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  (DPR-063) |
| Issue date: | 08/30/2006 |
| From: | Schimmel M Constellation Energy Group |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML062490527 (3) | |
Text
Constellation Energy, Nine Mile Point Nuclear Station P.O. Box 63 Lycoming, NY 13093 August 30, 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 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 August 16, 2006, at 0116 hours0.00134 days <br />0.0322 hours <br />1.917989e-4 weeks <br />4.4138e-5 months <br />, operators declared Channel #11 of the CHM System inoperable due to planned maintenance on the associated power board.
Cause of Inoperabilitv Channel #11 of the CHM System was declared inoperable due to planned maintenance on the associated power board.
Actions Taken Maintenance on the power board was completed and Channel #11 of the CHM System was declared operable on August 18, 2006, at 2200 hours0.0255 days <br />0.611 hours <br />0.00364 weeks <br />8.371e-4 months <br />.
Should you have any questions regarding this submittal, please contact M. H. Miller, Licensing Director, at (315) 349-1510.
Sincerely, Mark A. Schimmel Manager Engineering Services U-6~2~
Document Control Desk August 30, 2006 Page 2 MAS/RF/tsc cc:
S. J. Collins, NRC Regional Administrator, Region I L. M. Cline, NRC Senior Resident Inspector